GHSA-hvh4-5qr6-3v7r – pypqc

Package

Manager: pip
Name: pypqc
Vulnerable Version: >=0.0.4 <=0.0.6.2

Severity

Level: High

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N/E:P/RL:U/RC:C

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N

EPSS: N/A pctlN/A

Details

Observable Timing Discrepancy in pypqc ### Impact `kyber512`, `kyber768`, and `kyber1024` on Mac OS \(or when compiled with clang\) only: An attacker able to submit many decapsulation requests against a single private key, and to gain timing information about the decapsulation, could recover the private key. Proof-of-concept exploit exists for a local attacker. CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N/E:P/RL:U/RC:C ### Patches No patch is currently available / pending upstream [PQClean#556](https://github.com/PQClean/PQClean/issues/556). ### Workarounds No workarounds have been reported. The 0.0.7 -> 0.0.7.1 upgrade, when available, should be a drop-in replacement. ### References https://pqshield.com/pqshield-plugs-timing-leaks-in-kyber-ml-kem-to-improve-pqc-implementation-maturity/ https://github.com/antoonpurnal/clangover https://www.github.com/PQClean/PQClean/issues/556 https://www.github.com/pq-crystals/kyber/commit/9b8d30698a3e7449aeb34e62339d4176f11e3c6c

Metadata

Created: 2024-06-05T16:56:35Z
Modified: 2024-06-05T18:36:15Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/06/GHSA-hvh4-5qr6-3v7r/GHSA-hvh4-5qr6-3v7r.json
CWE IDs: ["CWE-385", "CWE-733"]
Alternative ID: N/A
Finding: F115
Auto approve: 1