UBUNTU-CVE-2026-6331

HMAC zero-length tag forgery in EVPDigestVerifyFinal, where a zero-length tag could be accepted as valid during HMAC verification. In the OpenSSL-compatibility HMAC verify path the supplied signature length was only checked as not exceeding the MAC length, so a zero-length or otherwise truncated...

CVE-2026-6331

HMAC zero-length tag forgery in EVPDigestVerifyFinal, where a zero-length tag could be accepted as valid during HMAC verification. In the OpenSSL-compatibility HMAC verify path the supplied signature length was only checked as not exceeding the MAC length, so a zero-length or otherwise truncated...

Medium: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: Input: synaptics-rmi4 - fix use after free in rmiunregisterfunction CVE-2023-52840 In the Linux kernel, the following vulnerability has been resolved: llc: verify mac len before reading mac header CVE-2023-52843 I...