VulnerabilityAnalyzed
CVE-2024-50383
Botan before 3.6.0, when certain GCC versions are used, has a compiler-induced secret-dependent operation in lib/utils/donna128.h in donna128 (used in Chacha-Poly1305 and x25519).
MEDIUM 5.9EPSS 0.55%
Does this matter?
Lower severity and a low EPSS score (0.55%). Track it; it rarely justifies an emergency change on its own.
Description
Botan before 3.6.0, when certain GCC versions are used, has a compiler-induced secret-dependent operation in lib/utils/donna128.h in donna128 (used in Chacha-Poly1305 and x25519). An addition can be skipped if a carry is not set. This was observed for GCC 11.3.0 with -O2 on MIPS, and GCC on x86-i386. (Only 32-bit processors can be affected.)
- CVSS 3.1
- 5.9 MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 0.55% probability · 44th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-203
- Affected
- botan project/botan
- Source
- cve@mitre.org
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.