Vulnerability in Botan Project
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). 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.)
EPSS: 0.005 (42.4th percentile) — read the EPSS interpretation.
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.
Affected products
- Botan_project Botan
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Patch)
- cve@mitre.org (Product)
- cve@mitre.org (Technical Description, Exploit, Third Party Advisory)
- cve@mitre.org (Issue Tracking)
Frequently asked questions
- What is CVE-2024-50383?
- CVE-2024-50383 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-2024-50383?
- Medium severity. CVSS v3 base score is 5.9 out of 10.
- Is CVE-2024-50383 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.