CVE-2022-29242: Gost Engine Project Gost Engine

High severity, CVSS 7.5. EPSS: 1.7% chance of exploitation in the next 30 days.

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.

Affected products

• Gost Engine Project Gost Engine: before 3.0.1 (fixed in 3.0.1)

Published 2022-05-24. Last modified 2026-06-17.