CVE-2024-50382

Public Exploit

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.

Category

5.9
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.12%
Third-Party Advisory arxiv.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/randombit/botan/commit/53b0cfde580e86b03d0d27a488b6c134f662e957 patch
https://github.com/randombit/botan/compare/3.5.0...3.6.0 product
https://arxiv.org/pdf/2410.13489 third party advisory technical description exploit
https://news.ycombinator.com/item?id=41887153 issue tracking

Frequently Asked Questions

What is the severity of CVE-2024-50382?
CVE-2024-50382 has been scored as a medium severity vulnerability.
How to fix CVE-2024-50382?
To fix CVE-2024-50382, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-50382 being actively exploited in the wild?
It is possible that CVE-2024-50382 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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