Vulnerability-Lookup

BDU:2024-04582 (CVE-2024-27018)

Vulnerability from fstec – Published: 2024-06-17 – Updated: 2026-01-20 – View on bdu.fstec.ru Fixed

Title

Уязвимость функции br_nf_local_in() компоненты netfilter ядра операционной системы Linux, позволяющая нарушителю оказать воздействие на конфиденциальность, целостность и доступность защищаемой информации

Summary

Уязвимость функции br_nf_local_in() в модуле net/bridge/br_netfilter_hooks.c компоненты netfilter ядра операционной системы Linux связана с некорректной обработкой пакетов. Эксплуатация уязвимости может позволить нарушителю оказать воздействие на конфиденциальность, целостность и доступность защищаемой информации

Severity

6.8 (Medium) CVSS 2.0


                      
                        AV:L/AC:L/Au:S/C:C/I:C/A:C

7.8 (High) CVSS 3.0


                      
                        CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Class

Code vulnerability

Status

Confirmed by the vendor

Exploitation

Resource manipulation

Incidents

Being clarified

Remediation

Software update

CWE

CWE-19 - Обработка данных

Aliases

CVE-2024-27018

References

17 references

URL
https://git.kernel.org/stable/c/dceb683ab87ca3666a9bb5c0158528b646faedc4
https://git.kernel.org/stable/c/3f59ac29dea0921637053908fe99268d157bbb9d
https://git.kernel.org/stable/c/43193174510ea4f3ce09b796e559a2fd9f148615
https://git.kernel.org/stable/c/b13db0d16bc7b2a52abcf5cb71334f63faa5dbd6
https://git.kernel.org/stable/c/751de2012eafa4d46d8081056761fa0e9cc8a178
https://www.cve.org/CVERecord?id=CVE-2024-27018
https://lore.kernel.org/linux-cve-announce/2024050150-CVE-2024-27018-d8a7@gregkh/
https://git.kernel.org/linus/751de2012eafa4d46d8081056761fa0e9cc8a178
https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.157
https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.88
https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.29
https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8.8
https://поддержка.нппкт.рф/bin/view/ОСнова/Обновления/2.11/
http://repo.red-soft.ru/redos/7.3c/x86_64/updates/
https://wiki.astralinux.ru/astra-linux-se17-bulletin-2025-0319SE17
https://wiki.astralinux.ru/astra-linux-se47-bulletin-2025-0422SE47
https://wiki.astralinux.ru/astra-linux-se16-bulletin-20251225SE16

Impacted products

5 products from 4 vendors

Vendors

ООО «Ред Софт», ООО «РусБИТех-Астра», Сообщество свободного программного обеспечения, АО «НППКТ»

Products

РЕД ОС (запись в едином реестре российских программ №3751), Astra Linux Special Edition (запись в едином реестре российских программ №369), Astra Linux Common Edition (запись в едином реестре российских программ №4433), Linux, ОСОН ОСнова Оnyx (запись в едином реестре российских программ №5913)

Versions

7.3 (РЕД ОС), 1.7 (Astra Linux Special Edition), 4.7 (Astra Linux Special Edition), 1.6 «Смоленск» (Astra Linux Common Edition), от 5.15.151 до 5.15.156 включительно (Linux), от 6.1.81 до 6.1.87 включительно (Linux), от 6.6.21 до 6.6.28 включительно (Linux), от 6.7.9 до 6.8.7 включительно (Linux), до 2.11 (ОСОН ОСнова Оnyx)

Product types

Operating system

Platforms

ООО «Ред Софт» РЕД ОС 7.3 (запись в едином реестре российских программ №3751), ООО «РусБИТех-Астра» Astra Linux Special Edition 1.7 (запись в едином реестре российских программ №369), ООО «РусБИТех-Астра» Astra Linux Special Edition 4.7 (запись в едином реестре российских программ №369), ООО «РусБИТех-Астра» Astra Linux Common Edition 1.6 «Смоленск» (запись в едином реестре российских программ №4433), Сообщество свободного программного обеспечения Linux от 5.15.151 до 5.15.156 включительно, Сообщество свободного программного обеспечения Linux от 6.1.81 до 6.1.87 включительно, Сообщество свободного программного обеспечения Linux от 6.6.21 до 6.6.28 включительно, Сообщество свободного программного обеспечения Linux от 6.7.9 до 6.8.7 включительно, АО «НППКТ» ОСОН ОСнова Оnyx до 2.11 (запись в едином реестре российских программ №5913)

Mitigations

Использование рекомендаций: Для Linux: https://git.kernel.org/stable/c/dceb683ab87ca3666a9bb5c0158528b646faedc4 https://git.kernel.org/stable/c/3f59ac29dea0921637053908fe99268d157bbb9d https://git.kernel.org/stable/c/43193174510ea4f3ce09b796e559a2fd9f148615 https://git.kernel.org/stable/c/b13db0d16bc7b2a52abcf5cb71334f63faa5dbd6 https://git.kernel.org/stable/c/751de2012eafa4d46d8081056761fa0e9cc8a178 https://lore.kernel.org/linux-cve-announce/2024050150-CVE-2024-27018-d8a7@gregkh/ https://git.kernel.org/linus/751de2012eafa4d46d8081056761fa0e9cc8a178 https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.157 https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.88 https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.29 https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8.8 Для ОСОН ОСнова Оnyx (2.11): Обновление программного обеспечения linux до версии 6.6.36-0.osnova233 Для РедОС: http://repo.red-soft.ru/redos/7.3c/x86_64/updates/ Для ОС Astra Linux: обновить пакет linux-5.15 до 5.15.0-127.astra1+ci4 или более высокой версии, используя рекомендации производителя: https://wiki.astralinux.ru/astra-linux-se17-bulletin-2025-0319SE17 Для ОС Astra Linux: обновить пакет linux-5.15 до 5.15.0-127.astra1+ci5 или более высокой версии, используя рекомендации производителя: https://wiki.astralinux.ru/astra-linux-se47-bulletin-2025-0422SE47 Для ОС Astra Linux: обновить пакет linux-5.15 до 5.15.0-158.astra2+ci2 или более высокой версии, используя рекомендации производителя: https://wiki.astralinux.ru/astra-linux-se16-bulletin-20251225SE16

JSON

To clipboard

{
  "CVSS 2.0": "AV:L/AC:L/Au:S/C:C/I:C/A:C",
  "CVSS 3.0": "AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "CVSS 4.0": null,
  "remediation_\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": null,
  "remediation_\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435": null,
  "\u0412\u0435\u043d\u0434\u043e\u0440 \u041f\u041e": "\u041e\u041e\u041e \u00ab\u0420\u0435\u0434 \u0421\u043e\u0444\u0442\u00bb, \u041e\u041e\u041e \u00ab\u0420\u0443\u0441\u0411\u0418\u0422\u0435\u0445-\u0410\u0441\u0442\u0440\u0430\u00bb, \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f, \u0410\u041e \u00ab\u041d\u041f\u041f\u041a\u0422\u00bb",
  "\u0412\u0435\u0440\u0441\u0438\u044f \u041f\u041e": "7.3 (\u0420\u0415\u0414 \u041e\u0421), 1.7 (Astra Linux Special Edition), 4.7 (Astra Linux Special Edition), 1.6 \u00ab\u0421\u043c\u043e\u043b\u0435\u043d\u0441\u043a\u00bb (Astra Linux Common Edition), \u043e\u0442 5.15.151 \u0434\u043e 5.15.156 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 6.1.81 \u0434\u043e 6.1.87 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 6.6.21 \u0434\u043e 6.6.28 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 6.7.9 \u0434\u043e 6.8.7 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u0434\u043e 2.11 (\u041e\u0421\u041e\u041d \u041e\u0421\u043d\u043e\u0432\u0430 \u041enyx)",
  "\u0412\u043e\u0437\u043c\u043e\u0436\u043d\u044b\u0435 \u043c\u0435\u0440\u044b \u043f\u043e \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044e": "\u0418\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0439:\n\u0414\u043b\u044f Linux:\nhttps://git.kernel.org/stable/c/dceb683ab87ca3666a9bb5c0158528b646faedc4\nhttps://git.kernel.org/stable/c/3f59ac29dea0921637053908fe99268d157bbb9d\nhttps://git.kernel.org/stable/c/43193174510ea4f3ce09b796e559a2fd9f148615\nhttps://git.kernel.org/stable/c/b13db0d16bc7b2a52abcf5cb71334f63faa5dbd6\nhttps://git.kernel.org/stable/c/751de2012eafa4d46d8081056761fa0e9cc8a178\nhttps://lore.kernel.org/linux-cve-announce/2024050150-CVE-2024-27018-d8a7@gregkh/\nhttps://git.kernel.org/linus/751de2012eafa4d46d8081056761fa0e9cc8a178\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.157\nhttps://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.88\nhttps://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.29\nhttps://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8.8\n\n\u0414\u043b\u044f \u041e\u0421\u041e\u041d \u041e\u0421\u043d\u043e\u0432\u0430 \u041enyx (2.11):\n\u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f linux \u0434\u043e \u0432\u0435\u0440\u0441\u0438\u0438 6.6.36-0.osnova233\n\n\u0414\u043b\u044f \u0420\u0435\u0434\u041e\u0421: http://repo.red-soft.ru/redos/7.3c/x86_64/updates/\n\n\u0414\u043b\u044f \u041e\u0421 Astra Linux:\n\u043e\u0431\u043d\u043e\u0432\u0438\u0442\u044c \u043f\u0430\u043a\u0435\u0442 linux-5.15 \u0434\u043e 5.15.0-127.astra1+ci4 \u0438\u043b\u0438 \u0431\u043e\u043b\u0435\u0435 \u0432\u044b\u0441\u043e\u043a\u043e\u0439 \u0432\u0435\u0440\u0441\u0438\u0438, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044f \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0438 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044f: https://wiki.astralinux.ru/astra-linux-se17-bulletin-2025-0319SE17\n\n\u0414\u043b\u044f \u041e\u0421 Astra Linux:\n\u043e\u0431\u043d\u043e\u0432\u0438\u0442\u044c \u043f\u0430\u043a\u0435\u0442 linux-5.15 \u0434\u043e 5.15.0-127.astra1+ci5 \u0438\u043b\u0438 \u0431\u043e\u043b\u0435\u0435 \u0432\u044b\u0441\u043e\u043a\u043e\u0439 \u0432\u0435\u0440\u0441\u0438\u0438, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044f \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0438 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044f: https://wiki.astralinux.ru/astra-linux-se47-bulletin-2025-0422SE47\n\n\u0414\u043b\u044f \u041e\u0421 Astra Linux:\n\u043e\u0431\u043d\u043e\u0432\u0438\u0442\u044c \u043f\u0430\u043a\u0435\u0442 linux-5.15 \u0434\u043e 5.15.0-158.astra2+ci2 \u0438\u043b\u0438 \u0431\u043e\u043b\u0435\u0435 \u0432\u044b\u0441\u043e\u043a\u043e\u0439 \u0432\u0435\u0440\u0441\u0438\u0438, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044f \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0438 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044f: https://wiki.astralinux.ru/astra-linux-se16-bulletin-20251225SE16",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "11.04.2024",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "20.01.2026",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "17.06.2024",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2024-04582",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440\u044b \u0434\u0440\u0443\u0433\u0438\u0445 \u0441\u0438\u0441\u0442\u0435\u043c \u043e\u043f\u0438\u0441\u0430\u043d\u0438\u0439 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "CVE-2024-27018",
  "\u0418\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f \u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430",
  "\u041a\u043b\u0430\u0441\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043a\u043e\u0434\u0430",
  "\u041d\u0430\u0437\u0432\u0430\u043d\u0438\u0435 \u041f\u041e": "\u0420\u0415\u0414 \u041e\u0421 (\u0437\u0430\u043f\u0438\u0441\u044c \u0432 \u0435\u0434\u0438\u043d\u043e\u043c \u0440\u0435\u0435\u0441\u0442\u0440\u0435 \u0440\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u0438\u0445 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c \u21163751), Astra Linux Special Edition (\u0437\u0430\u043f\u0438\u0441\u044c \u0432 \u0435\u0434\u0438\u043d\u043e\u043c \u0440\u0435\u0435\u0441\u0442\u0440\u0435 \u0440\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u0438\u0445 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c \u2116369), Astra Linux Common Edition (\u0437\u0430\u043f\u0438\u0441\u044c \u0432 \u0435\u0434\u0438\u043d\u043e\u043c \u0440\u0435\u0435\u0441\u0442\u0440\u0435 \u0440\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u0438\u0445 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c \u21164433), Linux, \u041e\u0421\u041e\u041d \u041e\u0421\u043d\u043e\u0432\u0430 \u041enyx (\u0437\u0430\u043f\u0438\u0441\u044c \u0432 \u0435\u0434\u0438\u043d\u043e\u043c \u0440\u0435\u0435\u0441\u0442\u0440\u0435 \u0440\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u0438\u0445 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c \u21165913)",
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u041e\u0421 \u0438 \u0442\u0438\u043f \u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u043e\u0439 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b": "\u041e\u041e\u041e \u00ab\u0420\u0435\u0434 \u0421\u043e\u0444\u0442\u00bb \u0420\u0415\u0414 \u041e\u0421 7.3  (\u0437\u0430\u043f\u0438\u0441\u044c \u0432 \u0435\u0434\u0438\u043d\u043e\u043c \u0440\u0435\u0435\u0441\u0442\u0440\u0435 \u0440\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u0438\u0445 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c \u21163751), \u041e\u041e\u041e \u00ab\u0420\u0443\u0441\u0411\u0418\u0422\u0435\u0445-\u0410\u0441\u0442\u0440\u0430\u00bb Astra Linux Special Edition 1.7  (\u0437\u0430\u043f\u0438\u0441\u044c \u0432 \u0435\u0434\u0438\u043d\u043e\u043c \u0440\u0435\u0435\u0441\u0442\u0440\u0435 \u0440\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u0438\u0445 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c \u2116369), \u041e\u041e\u041e \u00ab\u0420\u0443\u0441\u0411\u0418\u0422\u0435\u0445-\u0410\u0441\u0442\u0440\u0430\u00bb Astra Linux Special Edition 4.7  (\u0437\u0430\u043f\u0438\u0441\u044c \u0432 \u0435\u0434\u0438\u043d\u043e\u043c \u0440\u0435\u0435\u0441\u0442\u0440\u0435 \u0440\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u0438\u0445 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c \u2116369), \u041e\u041e\u041e \u00ab\u0420\u0443\u0441\u0411\u0418\u0422\u0435\u0445-\u0410\u0441\u0442\u0440\u0430\u00bb Astra Linux Common Edition 1.6 \u00ab\u0421\u043c\u043e\u043b\u0435\u043d\u0441\u043a\u00bb  (\u0437\u0430\u043f\u0438\u0441\u044c \u0432 \u0435\u0434\u0438\u043d\u043e\u043c \u0440\u0435\u0435\u0441\u0442\u0440\u0435 \u0440\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u0438\u0445 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c \u21164433), \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f Linux \u043e\u0442 5.15.151 \u0434\u043e 5.15.156 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e , \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f Linux \u043e\u0442 6.1.81 \u0434\u043e 6.1.87 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e , \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f Linux \u043e\u0442 6.6.21 \u0434\u043e 6.6.28 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e , \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f Linux \u043e\u0442 6.7.9 \u0434\u043e 6.8.7 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e , \u0410\u041e \u00ab\u041d\u041f\u041f\u041a\u0422\u00bb \u041e\u0421\u041e\u041d \u041e\u0421\u043d\u043e\u0432\u0430 \u041enyx \u0434\u043e 2.11  (\u0437\u0430\u043f\u0438\u0441\u044c \u0432 \u0435\u0434\u0438\u043d\u043e\u043c \u0440\u0435\u0435\u0441\u0442\u0440\u0435 \u0440\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u0438\u0445 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c \u21165913)",
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0444\u0443\u043d\u043a\u0446\u0438\u0438 br_nf_local_in() \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u044b netfilter \u044f\u0434\u0440\u0430 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b Linux, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e \u043e\u043a\u0430\u0437\u0430\u0442\u044c \u0432\u043e\u0437\u0434\u0435\u0439\u0441\u0442\u0432\u0438\u0435 \u043d\u0430 \u043a\u043e\u043d\u0444\u0438\u0434\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e\u0441\u0442\u044c, \u0446\u0435\u043b\u043e\u0441\u0442\u043d\u043e\u0441\u0442\u044c \u0438 \u0434\u043e\u0441\u0442\u0443\u043f\u043d\u043e\u0441\u0442\u044c \u0437\u0430\u0449\u0438\u0449\u0430\u0435\u043c\u043e\u0439 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438",
  "\u041d\u0430\u043b\u0438\u0447\u0438\u0435 \u044d\u043a\u0441\u043f\u043b\u043e\u0439\u0442\u0430": "\u0414\u0430\u043d\u043d\u044b\u0435 \u0443\u0442\u043e\u0447\u043d\u044f\u044e\u0442\u0441\u044f",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "\u041e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0430 \u0434\u0430\u043d\u043d\u044b\u0445 (CWE-19)",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0444\u0443\u043d\u043a\u0446\u0438\u0438 br_nf_local_in() \u0432 \u043c\u043e\u0434\u0443\u043b\u0435 net/bridge/br_netfilter_hooks.c \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u044b netfilter \u044f\u0434\u0440\u0430 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b Linux \u0441\u0432\u044f\u0437\u0430\u043d\u0430 \u0441 \u043d\u0435\u043a\u043e\u0440\u0440\u0435\u043a\u0442\u043d\u043e\u0439 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u043e\u0439 \u043f\u0430\u043a\u0435\u0442\u043e\u0432. \u042d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043c\u043e\u0436\u0435\u0442 \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u0442\u044c \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e \u043e\u043a\u0430\u0437\u0430\u0442\u044c \u0432\u043e\u0437\u0434\u0435\u0439\u0441\u0442\u0432\u0438\u0435 \u043d\u0430 \u043a\u043e\u043d\u0444\u0438\u0434\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e\u0441\u0442\u044c, \u0446\u0435\u043b\u043e\u0441\u0442\u043d\u043e\u0441\u0442\u044c \u0438 \u0434\u043e\u0441\u0442\u0443\u043f\u043d\u043e\u0441\u0442\u044c \u0437\u0430\u0449\u0438\u0449\u0430\u0435\u043c\u043e\u0439 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438",
  "\u041f\u043e\u0441\u043b\u0435\u0434\u0441\u0442\u0432\u0438\u044f \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": null,
  "\u041f\u0440\u043e\u0447\u0430\u044f \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f": null,
  "\u0421\u0432\u044f\u0437\u044c \u0441 \u0438\u043d\u0446\u0438\u0434\u0435\u043d\u0442\u0430\u043c\u0438 \u0418\u0411": "\u0414\u0430\u043d\u043d\u044b\u0435 \u0443\u0442\u043e\u0447\u043d\u044f\u044e\u0442\u0441\u044f",
  "\u0421\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u0430",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f": "\u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438": "\u041c\u0430\u043d\u0438\u043f\u0443\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u0440\u0435\u0441\u0443\u0440\u0441\u0430\u043c\u0438",
  "\u0421\u0441\u044b\u043b\u043a\u0438 \u043d\u0430 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u0438": "https://git.kernel.org/stable/c/dceb683ab87ca3666a9bb5c0158528b646faedc4\nhttps://git.kernel.org/stable/c/3f59ac29dea0921637053908fe99268d157bbb9d\nhttps://git.kernel.org/stable/c/43193174510ea4f3ce09b796e559a2fd9f148615\nhttps://git.kernel.org/stable/c/b13db0d16bc7b2a52abcf5cb71334f63faa5dbd6\nhttps://git.kernel.org/stable/c/751de2012eafa4d46d8081056761fa0e9cc8a178\nhttps://www.cve.org/CVERecord?id=CVE-2024-27018\nhttps://lore.kernel.org/linux-cve-announce/2024050150-CVE-2024-27018-d8a7@gregkh/\nhttps://git.kernel.org/linus/751de2012eafa4d46d8081056761fa0e9cc8a178\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.157\nhttps://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.88\nhttps://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.29\nhttps://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8.8\nhttps://\u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430.\u043d\u043f\u043f\u043a\u0442.\u0440\u0444/bin/view/\u041e\u0421\u043d\u043e\u0432\u0430/\u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f/2.11/\nhttp://repo.red-soft.ru/redos/7.3c/x86_64/updates/\nhttps://wiki.astralinux.ru/astra-linux-se17-bulletin-2025-0319SE17\nhttps://wiki.astralinux.ru/astra-linux-se47-bulletin-2025-0422SE47\nhttps://wiki.astralinux.ru/astra-linux-se16-bulletin-20251225SE16",
  "\u0421\u0442\u0430\u0442\u0443\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041f\u043e\u0434\u0442\u0432\u0435\u0440\u0436\u0434\u0435\u043d\u0430 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u0435\u043c",
  "\u0422\u0438\u043f \u041f\u041e": "\u041e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u0430\u044f \u0441\u0438\u0441\u0442\u0435\u043c\u0430",
  "\u0422\u0438\u043f \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "CWE-19",
  "\u0423\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0421\u0440\u0435\u0434\u043d\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 2.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 6,8)\n\u0412\u044b\u0441\u043e\u043a\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 3.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 7,8)"
}

CVE-2024-27018 (GCVE-0-2024-27018)

Vulnerability from cvelistv5 – Published: 2024-05-01 05:30 – Updated: 2026-08-05 11:29

Title

netfilter: br_netfilter: skip conntrack input hook for promisc packets

Summary

In the Linux kernel, the following vulnerability has been resolved: netfilter: br_netfilter: skip conntrack input hook for promisc packets For historical reasons, when bridge device is in promisc mode, packets that are directed to the taps follow bridge input hook path. This patch adds a workaround to reset conntrack for these packets. Jianbo Liu reports warning splats in their test infrastructure where cloned packets reach the br_netfilter input hook to confirm the conntrack object. Scratch one bit from BR_INPUT_SKB_CB to annotate that this packet has reached the input hook because it is passed up to the bridge device to reach the taps. [ 57.571874] WARNING: CPU: 1 PID: 0 at net/bridge/br_netfilter_hooks.c:616 br_nf_local_in+0x157/0x180 [br_netfilter] [ 57.572749] Modules linked in: xt_MASQUERADE nf_conntrack_netlink nfnetlink iptable_nat xt_addrtype xt_conntrack nf_nat br_netfilter rpcsec_gss_krb5 auth_rpcgss oid_registry overlay rpcrdma rdma_ucm ib_iser libiscsi scsi_transport_isc si ib_umad rdma_cm ib_ipoib iw_cm ib_cm mlx5_ib ib_uverbs ib_core mlx5ctl mlx5_core [ 57.575158] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.8.0+ #19 [ 57.575700] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 [ 57.576662] RIP: 0010:br_nf_local_in+0x157/0x180 [br_netfilter] [ 57.577195] Code: fe ff ff 41 bd 04 00 00 00 be 04 00 00 00 e9 4a ff ff ff be 04 00 00 00 48 89 ef e8 f3 a9 3c e1 66 83 ad b4 00 00 00 04 eb 91 <0f> 0b e9 f1 fe ff ff 0f 0b e9 df fe ff ff 48 89 df e8 b3 53 47 e1 [ 57.578722] RSP: 0018:ffff88885f845a08 EFLAGS: 00010202 [ 57.579207] RAX: 0000000000000002 RBX: ffff88812dfe8000 RCX: 0000000000000000 [ 57.579830] RDX: ffff88885f845a60 RSI: ffff8881022dc300 RDI: 0000000000000000 [ 57.580454] RBP: ffff88885f845a60 R08: 0000000000000001 R09: 0000000000000003 [ 57.581076] R10: 00000000ffff1300 R11: 0000000000000002 R12: 0000000000000000 [ 57.581695] R13: ffff8881047ffe00 R14: ffff888108dbee00 R15: ffff88814519b800 [ 57.582313] FS: 0000000000000000(0000) GS:ffff88885f840000(0000) knlGS:0000000000000000 [ 57.583040] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.583564] CR2: 000000c4206aa000 CR3: 0000000103847001 CR4: 0000000000370eb0 [ 57.584194] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 57.584820] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 57.585440] Call Trace: [ 57.585721] <IRQ> [ 57.585976] ? __warn+0x7d/0x130 [ 57.586323] ? br_nf_local_in+0x157/0x180 [br_netfilter] [ 57.586811] ? report_bug+0xf1/0x1c0 [ 57.587177] ? handle_bug+0x3f/0x70 [ 57.587539] ? exc_invalid_op+0x13/0x60 [ 57.587929] ? asm_exc_invalid_op+0x16/0x20 [ 57.588336] ? br_nf_local_in+0x157/0x180 [br_netfilter] [ 57.588825] nf_hook_slow+0x3d/0xd0 [ 57.589188] ? br_handle_vlan+0x4b/0x110 [ 57.589579] br_pass_frame_up+0xfc/0x150 [ 57.589970] ? br_port_flags_change+0x40/0x40 [ 57.590396] br_handle_frame_finish+0x346/0x5e0 [ 57.590837] ? ipt_do_table+0x32e/0x430 [ 57.591221] ? br_handle_local_finish+0x20/0x20 [ 57.591656] br_nf_hook_thresh+0x4b/0xf0 [br_netfilter] [ 57.592286] ? br_handle_local_finish+0x20/0x20 [ 57.592802] br_nf_pre_routing_finish+0x178/0x480 [br_netfilter] [ 57.593348] ? br_handle_local_finish+0x20/0x20 [ 57.593782] ? nf_nat_ipv4_pre_routing+0x25/0x60 [nf_nat] [ 57.594279] br_nf_pre_routing+0x24c/0x550 [br_netfilter] [ 57.594780] ? br_nf_hook_thresh+0xf0/0xf0 [br_netfilter] [ 57.595280] br_handle_frame+0x1f3/0x3d0 [ 57.595676] ? br_handle_local_finish+0x20/0x20 [ 57.596118] ? br_handle_frame_finish+0x5e0/0x5e0 [ 57.596566] __netif_receive_skb_core+0x25b/0xfc0 [ 57.597017] ? __napi_build_skb+0x37/0x40 [ 57.597418] __netif_receive_skb_list_core+0xfb/0x220

Severity

8.2 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-05-23 17:22 UTC

Assigner

Linux mitre root Scorecard

References

8 references

URL	Tags
https://git.kernel.org/stable/c/dceb683ab87ca3666…
https://git.kernel.org/stable/c/b13db0d16bc7b2a52…
https://git.kernel.org/stable/c/3f59ac29dea092163…
https://git.kernel.org/stable/c/43193174510ea4f3c…
https://git.kernel.org/stable/c/751de2012eafa4d46…
https://lists.fedoraproject.org/archives/list/pac…
https://lists.fedoraproject.org/archives/list/pac…
https://lists.fedoraproject.org/archives/list/pac…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 7c3f28599652acf431a2211168de4a583f30b6d5 , < dceb683ab87ca3666a9bb5c0158528b646faedc4 (git) Affected: 2b1414d5e94e477edff1d2c79030f1d742625ea0 , < b13db0d16bc7b2a52abcf5cb71334f63faa5dbd6 (git) Affected: 80cd0487f630b5382734997c3e5e3003a77db315 , < 3f59ac29dea0921637053908fe99268d157bbb9d (git) Affected: 62e7151ae3eb465e0ab52a20c941ff33bb6332e9 , < 43193174510ea4f3ce09b796e559a2fd9f148615 (git) Affected: 62e7151ae3eb465e0ab52a20c941ff33bb6332e9 , < 751de2012eafa4d46d8081056761fa0e9cc8a178 (git) Affected: cb734975b0ffa688ff6cc0eed463865bf07b6c01 (git) Affected: 5.15.151 , < 5.15.157 (semver) Affected: 6.1.81 , < 6.1.88 (semver) Affected: 6.6.21 , < 6.6.29 (semver) Affected: 6.7.9 , < 6.8 (semver)
Linux	Linux	Affected: 6.8 Unaffected: 0 , < 6.8 (semver) Unaffected: 5.15.157 , ≤ 5.15.* (semver) Unaffected: 6.1.88 , ≤ 6.1.* (semver) Unaffected: 6.6.29 , ≤ 6.6.* (semver) Unaffected: 6.8.8 , ≤ 6.8.* (semver) Unaffected: 6.9 , ≤ * (original_commit_for_fix)

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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: br_netfilter: skip conntrack input hook for promisc packets\n\nFor historical reasons, when bridge device is in promisc mode, packets\nthat are directed to the taps follow bridge input hook path. This patch\nadds a workaround to reset conntrack for these packets.\n\nJianbo Liu reports warning splats in their test infrastructure where\ncloned packets reach the br_netfilter input hook to confirm the\nconntrack object.\n\nScratch one bit from BR_INPUT_SKB_CB to annotate that this packet has\nreached the input hook because it is passed up to the bridge device to\nreach the taps.\n\n[   57.571874] WARNING: CPU: 1 PID: 0 at net/bridge/br_netfilter_hooks.c:616 br_nf_local_in+0x157/0x180 [br_netfilter]\n[   57.572749] Modules linked in: xt_MASQUERADE nf_conntrack_netlink nfnetlink iptable_nat xt_addrtype xt_conntrack nf_nat br_netfilter rpcsec_gss_krb5 auth_rpcgss oid_registry overlay rpcrdma rdma_ucm ib_iser libiscsi scsi_transport_isc si ib_umad rdma_cm ib_ipoib iw_cm ib_cm mlx5_ib ib_uverbs ib_core mlx5ctl mlx5_core\n[   57.575158] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.8.0+ #19\n[   57.575700] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\n[   57.576662] RIP: 0010:br_nf_local_in+0x157/0x180 [br_netfilter]\n[   57.577195] Code: fe ff ff 41 bd 04 00 00 00 be 04 00 00 00 e9 4a ff ff ff be 04 00 00 00 48 89 ef e8 f3 a9 3c e1 66 83 ad b4 00 00 00 04 eb 91 \u003c0f\u003e 0b e9 f1 fe ff ff 0f 0b e9 df fe ff ff 48 89 df e8 b3 53 47 e1\n[   57.578722] RSP: 0018:ffff88885f845a08 EFLAGS: 00010202\n[   57.579207] RAX: 0000000000000002 RBX: ffff88812dfe8000 RCX: 0000000000000000\n[   57.579830] RDX: ffff88885f845a60 RSI: ffff8881022dc300 RDI: 0000000000000000\n[   57.580454] RBP: ffff88885f845a60 R08: 0000000000000001 R09: 0000000000000003\n[   57.581076] R10: 00000000ffff1300 R11: 0000000000000002 R12: 0000000000000000\n[   57.581695] R13: ffff8881047ffe00 R14: ffff888108dbee00 R15: ffff88814519b800\n[   57.582313] FS:  0000000000000000(0000) GS:ffff88885f840000(0000) knlGS:0000000000000000\n[   57.583040] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[   57.583564] CR2: 000000c4206aa000 CR3: 0000000103847001 CR4: 0000000000370eb0\n[   57.584194] DR0: 0000000000000000 DR1: 0000000000000000 DR2:\n0000000000000000\n[   57.584820] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:\n0000000000000400\n[   57.585440] Call Trace:\n[   57.585721]  \u003cIRQ\u003e\n[   57.585976]  ? __warn+0x7d/0x130\n[   57.586323]  ? br_nf_local_in+0x157/0x180 [br_netfilter]\n[   57.586811]  ? report_bug+0xf1/0x1c0\n[   57.587177]  ? handle_bug+0x3f/0x70\n[   57.587539]  ? exc_invalid_op+0x13/0x60\n[   57.587929]  ? asm_exc_invalid_op+0x16/0x20\n[   57.588336]  ? br_nf_local_in+0x157/0x180 [br_netfilter]\n[   57.588825]  nf_hook_slow+0x3d/0xd0\n[   57.589188]  ? br_handle_vlan+0x4b/0x110\n[   57.589579]  br_pass_frame_up+0xfc/0x150\n[   57.589970]  ? br_port_flags_change+0x40/0x40\n[   57.590396]  br_handle_frame_finish+0x346/0x5e0\n[   57.590837]  ? ipt_do_table+0x32e/0x430\n[   57.591221]  ? br_handle_local_finish+0x20/0x20\n[   57.591656]  br_nf_hook_thresh+0x4b/0xf0 [br_netfilter]\n[   57.592286]  ? br_handle_local_finish+0x20/0x20\n[   57.592802]  br_nf_pre_routing_finish+0x178/0x480 [br_netfilter]\n[   57.593348]  ? br_handle_local_finish+0x20/0x20\n[   57.593782]  ? nf_nat_ipv4_pre_routing+0x25/0x60 [nf_nat]\n[   57.594279]  br_nf_pre_routing+0x24c/0x550 [br_netfilter]\n[   57.594780]  ? br_nf_hook_thresh+0xf0/0xf0 [br_netfilter]\n[   57.595280]  br_handle_frame+0x1f3/0x3d0\n[   57.595676]  ? br_handle_local_finish+0x20/0x20\n[   57.596118]  ? br_handle_frame_finish+0x5e0/0x5e0\n[   57.596566]  __netif_receive_skb_core+0x25b/0xfc0\n[   57.597017]  ? __napi_build_skb+0x37/0x40\n[   57.597418]  __netif_receive_skb_list_core+0xfb/0x220"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 8.2,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:N - The defect is in the bridge receive path (net/bridge/br_input.c \u2192 br_nf_local_in), driven purely by received frames and their IP/L4 content, which determines the conntrack tuple; on a bridging VM/container host any remote sender\u0027s packets routed to a bridged guest arrive with pkt_type != PACKET_HOST and take this exact path. No authentication, session, or local access is needed \u2014 only the ability to get packets to a bridged endpoint.\nAC:L - Once the bridge device is in promiscuous mode (set automatically by macvlan/macvtap on top of br0, or by any tap/tcpdump \u2014 the reporter\u0027s own routine test setup), every frame crossing the bridge deterministically reaches br_pass_frame_up() and the conntrack confirm hook; the attacker wins no race and needs no special memory layout. br_netfilter + conntrack + bridging is the default configuration on Docker/Kubernetes/libvirt hosts, not a rare option.\nPR:N - The path runs in softirq context on packet receive with no capability, credential, or authentication check anywhere between the NIC and br_nf_local_in(). An unauthenticated sender is sufficient; the alternative local route via unprivileged user namespaces would only be PR:L, so None is the correct broader value.\nUI:N - Triggering requires only that the attacker transmit frames that traverse the bridge; no administrator or user on the target system needs to open, mount, or click anything.\nS:U - The faulty conntrack confirmation, the WARN, and any resulting state damage are all contained within the kernel\u0027s own network stack and its security authority. There is no crossing of a VM, IOMMU, or sandbox boundary.\nC:N - The bug confirms conntrack entries and emits warnings; no attacker-observable memory contents or kernel addresses are returned to the attacker. The stale conntrack pointer read on the clash path feeds only a WARN_ON_ONCE and never propagates data outward.\nI:L - Attacker traffic causes the host to create and confirm conntrack entries for flows it is not a party to, and confirmation at LOCAL_IN explicitly disables NAT and conntrack helpers for those flows (per commit 62e7151ae3eb), so a bridging firewall silently fails to apply its NAT/helper policy and its connection-tracking state is polluted with attacker-seeded entries. This is a bounded, security-relevant modification of kernel firewall state rather than arbitrary write capability.\nA:H - Remotely sent frames trigger kernel WARN splats in br_nf_local_in() and __nf_conntrack_confirm(), which is a kernel panic on the many hardened/cloud/CI kernels built with panic_on_warn=1. Even without that, the failed concurrent confirms return NF_DROP (packet loss on the bridge) and a promiscuous bridge under attacker traffic fills the conntrack table with entries for observed third-party flows, exhausting nf_conntrack_max and denying service to the host\u0027s own and forwarded traffic."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T11:29:01.313Z",
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        {
          "url": "https://git.kernel.org/stable/c/dceb683ab87ca3666a9bb5c0158528b646faedc4"
        },
        {
          "url": "https://git.kernel.org/stable/c/b13db0d16bc7b2a52abcf5cb71334f63faa5dbd6"
        },
        {
          "url": "https://git.kernel.org/stable/c/3f59ac29dea0921637053908fe99268d157bbb9d"
        },
        {
          "url": "https://git.kernel.org/stable/c/43193174510ea4f3ce09b796e559a2fd9f148615"
        },
        {
          "url": "https://git.kernel.org/stable/c/751de2012eafa4d46d8081056761fa0e9cc8a178"
        }
      ],
      "title": "netfilter: br_netfilter: skip conntrack input hook for promisc packets",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-27018",
    "datePublished": "2024-05-01T05:30:06.472Z",
    "dateReserved": "2024-02-19T14:20:24.209Z",
    "dateUpdated": "2026-08-05T11:29:01.313Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

BDU:2024-04582 (CVE-2024-27018)

CVE-2024-27018 (GCVE-0-2024-27018)

Tags

Sightings

Nomenclature

Related by attack behaviour