Published: 24/05/2022 Updated: 07/06/2022

CVSS v2 Base Score: 5 | Impact Score: 2.9 | Exploitability Score: 10

CVSS v3 Base Score: 7.5 | Impact Score: 3.6 | Exploitability Score: 3.9

VMScore: 445

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

GOST engine is a reference implementation of the Russian GOST crypto algorithms for OpenSSL. TLS clients using GOST engine when ciphersuite `TLS_GOSTR341112_256_WITH_KUZNYECHIK_CTR_OMAC` is agreed and the server uses 512 bit GOST secret keys are vulnerable to buffer overflow. GOST engine version 3.0.1 contains a patch for this issue. Disabling ciphersuite `TLS_GOSTR341112_256_WITH_KUZNYECHIK_CTR_OMAC` is a possible workaround.

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Debian Bug report logs - #1012512 libengine-gost-openssl11: CVE-2022-29242 Package: src:libengine-gost-openssl11; Maintainer for src:libengine-gost-openssl11 is Wartan Hachaturow <wart@debianorg>; Reported by: Moritz Mühlenhoff <jmm@inutilorg> Date: Wed, 8 Jun 2022 15:51:01 UTC Severity: grave Tags: security, ...

CWE-120 https://github.com/gost-engine/engine/commit/b2b4d629f100eaee9f5942a106b1ccefe85b8808 https://github.com/gost-engine/engine/releases/tag/v3.0.1 https://github.com/gost-engine/engine/commit/7df766124f87768b43b9e8947c5a01e17545772c https://github.com/gost-engine/engine/commit/c6655a0b620a3e31f085cc906f8073fe81b2fad3 https://github.com/gost-engine/engine/security/advisories/GHSA-2rmw-8wpg-vgw5 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1012512 https://nvd.nist.gov

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CVE-2022-29242

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