A flaw was found in the Linux kernel’s IP framework for transforming packets (XFRM subsystem). This issue may allow a malicious user with CAP_NET_ADMIN privileges to directly dereference a NULL pointer in xfrm_update_ae_params(), leading to a possible kernel crash and denial of service.
https://www.debian.org/security/2023/dsa-5492
https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
https://bugzilla.redhat.com/show_bug.cgi?id=2218943
https://access.redhat.com/security/cve/CVE-2023-3772
https://access.redhat.com/errata/RHSA-2024:0575
https://access.redhat.com/errata/RHSA-2024:0412
https://access.redhat.com/errata/RHSA-2023:7077
https://access.redhat.com/errata/RHSA-2023:6901