A memory leak flaw was found in the Linux kernel's Stream Control Transmission Protocol. This issue may occur when a user starts a malicious networking service and someone connects to this service. This could allow a local user to starve resources, causing a denial of service.
https://www.openwall.com/lists/oss-security/2023/01/23/1
https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html
https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html