PT-2026-99690

cosmian kyber is a fork of Argyle-Software/kyber that has seen no maintainer activity. It inherits the fork parent's broken AVX2 constant-time code, and the open fix pull request Cosmian/kyber6 has gone unanswered. Recommended alternatives: - aws-lc-rs - graviola...

Microarchitectural Attacks on the Stack Engine

Summary Researchers from ETH Zurich have published a paper titled “One Flew over the Stack Engine’s Nest: Practical Microarchitectural Attacks on the Stack Engine.” AMD continues to recommend software developers employ existing best practices including constant time algorithm and avoid...

New Hertzbleed Side Channel Attack Affects All Modern AMD and Intel CPUs

A newly discovered security vulnerability in modern Intel and AMD processors could let remote attackers steal encryption keys via a power side channel attack. Dubbed Hertzbleed by a group of researchers from the University of Texas, the University of Illinois Urbana-Champaign, and the University ...

openssl security update

1.1.1c-2 - do not try to use EC groups disallowed in FIPS mode in TLS - fix Valgrind regression with constant-time code 1.1.1c-1 - update to the 1.1.1c release 1.1.1b-6 - adjust the default cert pbe algorithm for pkcs12 -export in the FIPS mode 1.1.1b-5 - Fix small regressions related to the reba...