VULNERABILITY INTELLIGENCE

CVE-2024-50383

CVSS score5.9 MEDIUM
EPSS probability0.55%
CISA KEVNot currently listed
Published2024-10-23
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

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.)

Weakness classification

  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-203

Primary references