A flaw was found in the XFRM subsystem in the Linux kernel. The specific flaw exists within the processing of state filters, which can result in a read past the end of an allocated buffer. This flaw allows a local privileged (CAP_NET_ADMIN) attacker to trigger an out-of-bounds read, potentially leading to an information disclosure.
https://www.zerodayinitiative.com/advisories/ZDI-CAN-18111/
https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
https://bugzilla.redhat.com/show_bug.cgi?id=2226788