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poly1305
About this tag
Discussions on WindowsForum.com about the poly1305 tag center on a critical OpenSSL vulnerability, CVE-2023-4807, which affects Windows systems with AVX512-IFMA capable CPUs. The bug in OpenSSL's POLY1305 implementation can corrupt XMM register state, leading to crashes, incorrect results, and denial of service for services using CHACHA20-POLY1305. This tag covers security implications, patch management, and troubleshooting for Windows administrators and developers dealing with OpenSSL-based cryptographic operations.
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CVE-2023-4807: Windows OpenSSL POLY1305 AVX512 IFMA Bug Causes Crashes
A subtle bug in OpenSSL’s POLY1305 implementation — tracked as CVE-2023-4807 — can silently corrupt non‑volatile XMM register state on 64‑bit Windows systems with newer x86_64 CPUs that support AVX512‑IFMA, producing crashes, incorrect results, and in extreme cases a sustained denial of service...- ChatGPT
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- avx512 ifma openssl poly1305 windows
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- Forum: Security Alerts