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EUVD-2026-345150

European Vulnerability Database identifier assigned by ENISA

Reserved

2026-10-02 08:00

Assigner

ENISA

Alias of

a CVE record, shown under related vulnerabilities. This identifier carries no description, severity or references of its own: they belong to that CVE.

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{
  "assigner": "ENISA",
  "date_reserved": "2026-10-02T08:00:07.887383+00:00",
  "id": "EUVD-2026-345150"
}

CVE-2023-53179 (GCVE-0-2023-53179)

Vulnerability from cvelistv5 – Published: 2025-09-15 14:04 – Updated: 2026-08-05 09:12

Title

netfilter: ipset: add the missing IP_SET_HASH_WITH_NET0 macro for ip_set_hash_netportnet.c

Summary

In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: add the missing IP_SET_HASH_WITH_NET0 macro for ip_set_hash_netportnet.c The missing IP_SET_HASH_WITH_NET0 macro in ip_set_hash_netportnet can lead to the use of wrong `CIDR_POS(c)` for calculating array offsets, which can lead to integer underflow. As a result, it leads to slab out-of-bound access. This patch adds back the IP_SET_HASH_WITH_NET0 macro to ip_set_hash_netportnet to address the issue.

Severity

7.8 (High)


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

Assigner

Linux mitre root Scorecard

References

9 references

URL	Tags
https://git.kernel.org/stable/c/7935b636dd693dfe4…
https://git.kernel.org/stable/c/e632d09dffc68b960…
https://git.kernel.org/stable/c/109e830585e89a03d…
https://git.kernel.org/stable/c/83091f8ac03f11808…
https://git.kernel.org/stable/c/a9e6142e5f8f6ac7d…
https://git.kernel.org/stable/c/7ca0706c68adadf86…
https://git.kernel.org/stable/c/d59b6fc405549f7ca…
https://git.kernel.org/stable/c/d95c8420efe684b96…
https://git.kernel.org/stable/c/050d91c03b28ca479…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 0d5d0b5c41f766355f2b42c47d13ea001f754c7d , < 7935b636dd693dfe4483cfef4a1e91366c8103fa (git) Affected: cb3e590df429ce151d5041884a4947099b8ad6a7 , < e632d09dffc68b9602d6893a99bfe3001d36cefc (git) Affected: 886503f34d63e681662057448819edb5b1057a97 , < 109e830585e89a03d554bf8ad0e668630d0a6260 (git) Affected: 886503f34d63e681662057448819edb5b1057a97 , < 83091f8ac03f118086596f17c9a52d31d6ca94b3 (git) Affected: 886503f34d63e681662057448819edb5b1057a97 , < a9e6142e5f8f6ac7d1bca45c1b2b13b084ea9e14 (git) Affected: 886503f34d63e681662057448819edb5b1057a97 , < 7ca0706c68adadf86a36b60dca090f5e9481e808 (git) Affected: 886503f34d63e681662057448819edb5b1057a97 , < d59b6fc405549f7caf31f6aa5da1d6bef746b166 (git) Affected: 886503f34d63e681662057448819edb5b1057a97 , < d95c8420efe684b964e3aa28108e9a354bcd7225 (git) Affected: 886503f34d63e681662057448819edb5b1057a97 , < 050d91c03b28ca479df13dfb02bcd2c60dd6a878 (git) Affected: 186642845b02e1a7944ef33c3a3ac41eba77517f (git) Affected: 919560afc21f91ca352a20394d5249aba1799690 (git) Affected: 4.14.84 , < 4.14.326 (semver) Affected: 4.19.5 , < 4.19.295 (semver) Affected: 4.4.165 , < 4.5 (semver) Affected: 4.9.141 , < 4.10 (semver)
Linux	Linux	Affected: 4.20 Unaffected: 0 , < 4.20 (semver) Unaffected: 4.14.326 , ≤ 4.14.* (semver) Unaffected: 4.19.295 , ≤ 4.19.* (semver) Unaffected: 5.4.257 , ≤ 5.4.* (semver) Unaffected: 5.10.195 , ≤ 5.10.* (semver) Unaffected: 5.15.132 , ≤ 5.15.* (semver) Unaffected: 6.1.53 , ≤ 6.1.* (semver) Unaffected: 6.4.16 , ≤ 6.4.* (semver) Unaffected: 6.5.3 , ≤ 6.5.* (semver) Unaffected: 6.6 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/netfilter/ipset/ip_set_hash_netportnet.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "7935b636dd693dfe4483cfef4a1e91366c8103fa",
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              "version": "0d5d0b5c41f766355f2b42c47d13ea001f754c7d",
              "versionType": "git"
            },
            {
              "lessThan": "e632d09dffc68b9602d6893a99bfe3001d36cefc",
              "status": "affected",
              "version": "cb3e590df429ce151d5041884a4947099b8ad6a7",
              "versionType": "git"
            },
            {
              "lessThan": "109e830585e89a03d554bf8ad0e668630d0a6260",
              "status": "affected",
              "version": "886503f34d63e681662057448819edb5b1057a97",
              "versionType": "git"
            },
            {
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              "status": "affected",
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              "versionType": "git"
            },
            {
              "lessThan": "a9e6142e5f8f6ac7d1bca45c1b2b13b084ea9e14",
              "status": "affected",
              "version": "886503f34d63e681662057448819edb5b1057a97",
              "versionType": "git"
            },
            {
              "lessThan": "7ca0706c68adadf86a36b60dca090f5e9481e808",
              "status": "affected",
              "version": "886503f34d63e681662057448819edb5b1057a97",
              "versionType": "git"
            },
            {
              "lessThan": "d59b6fc405549f7caf31f6aa5da1d6bef746b166",
              "status": "affected",
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              "versionType": "git"
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              "versionType": "git"
            },
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              "status": "affected",
              "version": "886503f34d63e681662057448819edb5b1057a97",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "186642845b02e1a7944ef33c3a3ac41eba77517f",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "919560afc21f91ca352a20394d5249aba1799690",
              "versionType": "git"
            },
            {
              "lessThan": "4.14.326",
              "status": "affected",
              "version": "4.14.84",
              "versionType": "semver"
            },
            {
              "lessThan": "4.19.295",
              "status": "affected",
              "version": "4.19.5",
              "versionType": "semver"
            },
            {
              "lessThan": "4.5",
              "status": "affected",
              "version": "4.4.165",
              "versionType": "semver"
            },
            {
              "lessThan": "4.10",
              "status": "affected",
              "version": "4.9.141",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/netfilter/ipset/ip_set_hash_netportnet.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.20"
            },
            {
              "lessThan": "4.20",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.326",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.295",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.257",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.195",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.132",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.53",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.4.*",
              "status": "unaffected",
              "version": "6.4.16",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.5.*",
              "status": "unaffected",
              "version": "6.5.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.6",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
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              "cpeMatch": [
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                  "versionEndExcluding": "4.14.326",
                  "versionStartIncluding": "4.14.84",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.295",
                  "versionStartIncluding": "4.19.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.257",
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                  "vulnerable": true
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                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.132",
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                  "vulnerable": true
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                {
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                {
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                },
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                },
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                },
                {
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                }
              ],
              "negate": false,
              "operator": "OR"
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          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: ipset: add the missing IP_SET_HASH_WITH_NET0 macro for ip_set_hash_netportnet.c\n\nThe missing IP_SET_HASH_WITH_NET0 macro in ip_set_hash_netportnet can\nlead to the use of wrong `CIDR_POS(c)` for calculating array offsets,\nwhich can lead to integer underflow. As a result, it leads to slab\nout-of-bound access.\nThis patch adds back the IP_SET_HASH_WITH_NET0 macro to\nip_set_hash_netportnet to address the issue."
        }
      ],
      "metrics": [
        {
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            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The bug is triggered via nfnetlink netlink messages (ipset create/add on hash:net,port,net), which require a local syscall path (sendto/netlink_sendmsg), not remote packet processing.\nAC:L - An attacker can reliably trigger the OOB by creating a hash:net,port,net set and adding an entry with CIDR 0; no race or victim-controlled state is required, and on amd64 the underflow consistently indexes at -1.\nPR:L - nfnetlink only requires CAP_NET_ADMIN via netlink_net_capable over the network namespace\u0027s user_ns, which an unprivileged local user can obtain with user+network namespaces (unshare -Urn).\nUI:N - Exploitation is fully attacker-driven through netlink ipset commands and does not require any victim action.\nS:U - This is a standard in-kernel privilege escalation within the same OS security authority; it does not cross VM, IOMMU, or other security boundaries.\nC:H - The OOB increment/decrement of adjacent slab objects can corrupt length/pointer fields to obtain out-of-bounds read primitives, enabling arbitrary kernel memory disclosure.\nI:H - Controlled OOB ++/-- on slab memory adjacent to h-\u003enets provides a write primitive that the discoverer assessed as likely exploitable for privilege escalation and arbitrary modification.\nA:H - The out-of-bounds access can crash the kernel (UBSAN/panic demonstrated in the public PoC), so availability impact is high."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T09:12:57.491Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/7935b636dd693dfe4483cfef4a1e91366c8103fa"
        },
        {
          "url": "https://git.kernel.org/stable/c/e632d09dffc68b9602d6893a99bfe3001d36cefc"
        },
        {
          "url": "https://git.kernel.org/stable/c/109e830585e89a03d554bf8ad0e668630d0a6260"
        },
        {
          "url": "https://git.kernel.org/stable/c/83091f8ac03f118086596f17c9a52d31d6ca94b3"
        },
        {
          "url": "https://git.kernel.org/stable/c/a9e6142e5f8f6ac7d1bca45c1b2b13b084ea9e14"
        },
        {
          "url": "https://git.kernel.org/stable/c/7ca0706c68adadf86a36b60dca090f5e9481e808"
        },
        {
          "url": "https://git.kernel.org/stable/c/d59b6fc405549f7caf31f6aa5da1d6bef746b166"
        },
        {
          "url": "https://git.kernel.org/stable/c/d95c8420efe684b964e3aa28108e9a354bcd7225"
        },
        {
          "url": "https://git.kernel.org/stable/c/050d91c03b28ca479df13dfb02bcd2c60dd6a878"
        }
      ],
      "title": "netfilter: ipset: add the missing IP_SET_HASH_WITH_NET0 macro for ip_set_hash_netportnet.c",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53179",
    "datePublished": "2025-09-15T14:04:26.782Z",
    "dateReserved": "2025-09-15T13:59:19.065Z",
    "dateUpdated": "2026-08-05T09:12:57.491Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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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.

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EUVD-2026-345150

CVE-2023-53179 (GCVE-0-2023-53179)

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Nomenclature

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