cryspen/libcrux · Security
libcrux Panics During Standalone MAC Operations
- GHSA ID
- GHSA-pv9v-5j35-xwcr
- Severity
- high
- Published
- Updated
- CVSS v4
- 8.7 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Description
An incorrect constant for the key length in libcrux-poly1305 caused the standalone MAC function libcrux_poly1305::mac to always panic with an out-of-bounds memory access.
Impact
Applications wishing to use libcrux-poly1305 as a standalone MAC would experience panics. The use of libcrux-poly1305 in libcrux-chacha20poly1305 is unaffected.
Mitigation
Starting from version 0.0.5, the correct value is used for the key length constant.
CWEs
- CWE-125 · Out-of-bounds Read
- CWE-805 · Buffer Access with Incorrect Length Value