CVE-2024-50382

MediumCVSS 5.9/10Last modified Jun 17, 2026

Description

Botan before 3.6.0, when certain LLVM versions are used, has compiler-induced secret-dependent control flow in lib/utils/ghash/ghash.cpp in GHASH in AES-GCM. There is a branch instead of an XOR with carry. This was observed for Clang in LLVM 15 on RISC-V.

Metrics

CVSS 3.1 5.9/10CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-203

Affected software

Vendor	Product	Versions
n/a	n/a	n/a
botan_project	botan	< 3.6.0

References

https://arxiv.org/pdf/2410.13489Exploit, Technical Description, Third Party Advisory
https://github.com/randombit/botan/commit/53b0cfde580e86b03d0d27a488b6c134f662e957Patch
https://github.com/randombit/botan/compare/3.5.0...3.6.0Product
https://news.ycombinator.com/item?id=41887153Issue Tracking

Timeline

Published: Oct 23, 2024
Last modified: Jun 17, 2026
NVD status: Analyzed

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