Vulnerability in Botan Project
CVE-2024-50382
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.005 (43.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 43.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.005 · change: -0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/randombit/botan/commit/53b0cfde580e86b03d0d27a488b6c134f662e957 (Patch)
- github.com/randombit/botan/compare/3.5.0...3.6.0 (Product)
- arxiv.org/pdf/2410.13489 (Technical Description, Exploit, Third Party Advisory)
- news.ycombinator.com/item (Issue Tracking)
Frequently asked questions
- What is CVE-2024-50382?
- CVE-2024-50382 is a medium-severity vulnerability in Botan Project, classified under Observable Discrepancy. CVSS score: 5.9/10. Published 2024-10-23.
- How severe is CVE-2024-50382?
- Medium severity. CVSS v3 base score is 5.9 out of 10.
- Is CVE-2024-50382 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.