Source: liboqs
Version: 0.8.0-1
Severity: grave
Tags: security upstream
Justification: user security hole
X-Debbugs-Cc: car...@debian.org, Debian Security Team <t...@security.debian.org>

Hi,

The following vulnerability was published for liboqs.

CVE-2024-36405[0]:
| liboqs is a C-language cryptographic library that provides
| implementations of post-quantum cryptography algorithms. A control-
| flow timing lean has been identified in the reference implementation
| of the Kyber key encapsulation mechanism when it is compiled with
| Clang 15-18 for `-Os`, `-O1`, and other compilation options. A
| proof-of-concept local attack on the reference implementation leaks
| the entire ML-KEM 512 secret key in ~10 minutes using end-to-end
| decapsulation timing measurements. The issue has been fixed in
| version 0.10.1. As a possible workaround, some compiler options may
| produce vectorized code that does not leak secret information,
| however relying on these compiler options as a workaround may not be
| reliable.


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2024-36405
    https://www.cve.org/CVERecord?id=CVE-2024-36405
[1] 
https://github.com/open-quantum-safe/liboqs/security/advisories/GHSA-f2v9-5498-2vpp

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore

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