Ubuntu 21.04 (Hirsute Hippo) has reached its end-of-life (EOL) January 20, 2022, nearly nine months after its initial release.
The GNU Transport Layer Security Library (GnuTLS) patched a vulnerability hidden in code for nearly two years. The issue applies to a flaw in how TLS 1.3 session resumption works without a master key. As a result, an attacker could exploit and launch man-in-the-middle (MITM) attacks.
The CERT Coordination Center (CERT/CC) has released a security advisory for multiple “SACK Panic” vulnerabilities that impact Linux kernels. To add, a related flaw also impacts FreeBSD.