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 cause a 4 byte out-of-bounds read of XFRMA_MTIMER_THRESH when parsing netlink attributes, leading to potential leakage of sensitive heap data to userspace.
https://www.debian.org/security/2023/dsa-5492
https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
https://bugzilla.redhat.com/show_bug.cgi?id=2218944