libcrux incorrectly calculates on aarch64
Priority LOW 38CWE-200Published · Updated
Key facts
- Attack vector
- —
- Privileges required
- —
- User interaction
- —
- Attack complexity
- —
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- —
- Fix status
- Fixed
No CVSS vector from any source. Fix status from GitHub. Impact type from CWE-200.
Summary
On platforms without the `core::arch::aarch64::vxarq_u64` intrinsic, an unverified fallback in `libcrux-intrinsics` v0.0.3 passed incorrect arguments and produced wrong results. This corrupted SHA-3 digests and caused `libcrux-ml-kem` and `libcrux-ml-dsa` to sample incorrectly, yielding incorrect shared secrets and invalid signatures. The issue has been fixed in v0.0.4.
Why it matters now
Fix Fixed libcrux-intrinsics (crates.io): 0.0.4libcrux-ml-kem (crates.io): 0.0.4+1 more product
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | libcrux-intrinsics (crates.io) | 0.0.3 to before 0.0.4 | 0.0.4 | Patch available | GHSA-2cgv-28vr-rv6j |
| — | libcrux-ml-kem (crates.io) | 0.0.3 to before 0.0.4 | 0.0.4 | Patch available | GHSA-2cgv-28vr-rv6j |
| — | libcrux-ml-dsa (crates.io) | 0.0.3 to before 0.0.4 | 0.0.4 | Patch available | GHSA-2cgv-28vr-rv6j |
- libcrux-intrinsics (crates.io) Vendor— Affected 0.0.3 to before 0.0.4 Fixed in 0.0.4 Patch available GHSA-2cgv-28vr-rv6j
- libcrux-ml-kem (crates.io) Vendor— Affected 0.0.3 to before 0.0.4 Fixed in 0.0.4 Patch available GHSA-2cgv-28vr-rv6j
- libcrux-ml-dsa (crates.io) Vendor— Affected 0.0.3 to before 0.0.4 Fixed in 0.0.4 Patch available GHSA-2cgv-28vr-rv6j
Remediation
- Fix · GHSA-2cgv-28vr-rv6j libcrux-intrinsics (crates.io) Fixed in 0.0.4 Advisory →
- Fix · GHSA-2cgv-28vr-rv6j libcrux-ml-kem (crates.io) Fixed in 0.0.4 Advisory →
- Fix · GHSA-2cgv-28vr-rv6j libcrux-ml-dsa (crates.io) Fixed in 0.0.4 Advisory →
Timeline
- 2026-10-03 Threatist record created from GHSA-2cgv-28vr-rv6j
References
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences