https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-03T14:43:04.631112+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/alsa-2023:6549 ALSA-2023:6549 — Moderate: libreswan security update 2026-10-03T14:43:04.951240+00:00

Affected: AlmaLinux:9: libreswan

Libreswan is an implementation of IPsec and IKE for Linux. IPsec is the Internet Protocol Security and uses strong cryptography to provide both authentication and encryption services. These services allow you to build secure tunnels through untrusted networks such as virtual private network (VPN).

Security Fix(es):

* libreswan: Invalid IKEv2 REKEY proposal causes restart (CVE-2023-38710) * libreswan: Invalid IKEv1 Quick Mode ID causes restart (CVE-2023-38711) * libreswan: Invalid IKEv1 repeat IKE SA delete causes crash and restart (CVE-2023-38712)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.

 https://cve.radiocsirt.org/vuln/bdu:2023-05882 bdu:2023-05882 2026-10-03T14:43:04.951306+00:00 bdu:2023-05882 https://cve.radiocsirt.org/vuln/euvd-2026-8983 EUVD-2026-8983 2026-10-03T14:43:04.951323+00:00 EUVD-2026-8983 https://cve.radiocsirt.org/vuln/fkie_cve-2023-38711 fkie_cve-2023-38711 2026-10-03T14:43:04.951336+00:00

An issue was discovered in Libreswan before 4.12. When an IKEv1 Quick Mode connection configured with ID_IPV4_ADDR or ID_IPV6_ADDR receives an IDcr payload with ID_FQDN, a NULL pointer dereference causes a crash and restart of the pluto daemon. NOTE: the earliest affected version is 4.6.

 https://cve.radiocsirt.org/vuln/ghsa-prwp-xrv5-5jv3 GHSA-prwp-xrv5-5jv3 2026-10-03T14:43:04.951359+00:00

An issue was discovered in Libreswan before 4.12. When an IKEv1 Quick Mode connection configured with ID_IPV4_ADDR or ID_IPV6_ADDR receives an IDcr payload with ID_FQDN, a NULL pointer dereference causes a crash and restart of the pluto daemon. NOTE: the earliest affected version is 4.6.

 https://cve.radiocsirt.org/vuln/gsd-2023-38711 gsd-2023-38711 2026-10-03T14:43:04.951376+00:00 gsd-2023-38711 https://cve.radiocsirt.org/vuln/msrc_cve-2023-38711 msrc_CVE-2023-38711 — An issue was discovered in Libreswan before 4.12. When an IKEv1 Quick Mode connection configured with ID_IPV4_ADDR or I… 2026-10-03T14:43:04.951387+00:00 msrc_CVE-2023-38711 https://cve.radiocsirt.org/vuln/oesa-2023-1581 OESA-2023-1581 — libreswan security update 2026-10-03T14:43:04.951405+00:00

Affected: openEuler:20.03-LTS-SP1: libreswan, openEuler:20.03-LTS-SP3: libreswan, openEuler:22.03-LTS: libreswan, openEuler:22.03-LTS-SP1: libreswan, openEuler:22.03-LTS-SP2: libreswan

Libreswan is an implementation of IKEv1 and IKEv2 for IPsec. IPsec is the Internet Protocol Security and uses strong cryptography to provide both authentication and encryption services. Security Fix(es): An issue was discovered in Libreswan before 4.12. When an IKEv2 Child SA REKEY packet contains an invalid IPsec protocol ID number of 0 or 1, an error notify INVALID_SPI is sent back. The notify payload's protocol ID is copied from the incoming packet, but the code that verifies outgoing packets fails an assertion that the protocol ID must be ESP (2) or AH(3) and causes the pluto daemon to crash and restart. NOTE: the earliest affected version is 3.20.(CVE-2023-38710) An issue was discovered in Libreswan before 4.12. When an IKEv1 Quick Mode connection configured with ID_IPV4_ADDR or ID_IPV6_ADDR receives an IDcr payload with ID_FQDN, a NULL pointer dereference causes a crash and restart of the pluto daemon. NOTE: the earliest affected version is 4.6.(CVE-2023-38711) An issue was discovered in Libreswan 3.x and 4.x before 4.12. When an IKEv1 ISAKMP SA Informational Exchange packet contains a Delete/Notify payload followed by further Notifies that act on the ISAKMP SA, such as a duplicated Delete/Notify message, a NULL pointer dereference on the deleted state causes the pluto daemon to crash and restart.(CVE-2023-38712)

 https://cve.radiocsirt.org/vuln/rhba-2024:11505 RHBA-2024:11505 — Red Hat Bug Fix Advisory: OpenShift Container Platform 4.16.28 packages and security update 2026-10-03T14:43:04.951443+00:00

libreswan: Regression of CVE-2023-30570 fixes in the Red Hat Enterprise Linux libreswan: remote DoS via crafted TS payload with an incorrect selector length libreswan: Malicious IKEv1 Aggressive Mode packets can crash libreswan libreswan: Invalid IKEv2 REKEY proposal causes restart libreswan: Invalid IKEv1 Quick Mode ID causes restart libreswan: Invalid IKEv1 repeat IKE SA delete causes crash and restart libreswan: Missing PreSharedKey for connection can cause crash libreswan: IKEv1 default AH/ESP responder can crash and restart

 https://cve.radiocsirt.org/vuln/rhsa-2023:6549 RHSA-2023:6549 — Red Hat Security Advisory: libreswan security update 2026-10-03T14:43:04.951501+00:00

libreswan: Invalid IKEv2 REKEY proposal causes restart libreswan: Invalid IKEv1 Quick Mode ID causes restart libreswan: Invalid IKEv1 repeat IKE SA delete causes crash and restart

 https://cve.radiocsirt.org/vuln/ubuntu-cve-2023-38711 UBUNTU-CVE-2023-38711 2026-10-03T14:43:04.951533+00:00

Affected: Ubuntu:20.04:LTS: libreswan, Ubuntu:22.04:LTS: libreswan, Ubuntu:24.04:LTS: libreswan, Ubuntu:25.10: libreswan, Ubuntu:26.04:LTS: libreswan

An issue was discovered in Libreswan before 4.12. When an IKEv1 Quick Mode connection configured with ID_IPV4_ADDR or ID_IPV6_ADDR receives an IDcr payload with ID_FQDN, a NULL pointer dereference causes a crash and restart of the pluto daemon. NOTE: the earliest affected version is 4.6.

 https://cve.radiocsirt.org/vuln/wid-sec-w-2023-2853 WID-SEC-W-2023-2853 — Red Hat Enterprise Linux: Mehrere Schwachstellen 2026-10-03T14:43:04.951577+00:00

Ein Angreifer kann mehrere Schwachstellen in Red Hat Enterprise Linux ausnutzen, um einen Denial-of-Service-Zustand herbeizuführen, Sicherheitsmaßnahmen zu umgehen, seine Privilegien zu erweitern, vertrauliche Informationen offenzulegen oder beliebigen Code auszuführen.