CVE-2022-29242

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    CVE-2022-29242

    Published: 24 May 2022Last Modified: 12 Aug 2026

    Summary: Buffer Overflow on creating key transport blob in GOST Engine

    Details: 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.

    References: https://github.com/gost-engine/engine/releases/tag/v3.0.1, https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/29xxx/CVE-2022-29242.json, https://github.com/gost-engine/engine/security/advisories/GHSA-2rmw-8wpg-vgw5, https://nvd.nist.gov/vuln/detail/CVE-2022-29242, https://github.com/gost-engine/engine/commit/7df766124f87768b43b9e8947c5a01e17545772c, https://github.com/gost-engine/engine/commit/b2b4d629f100eaee9f5942a106b1ccefe85b8808, https://github.com/gost-engine/engine/commit/c6655a0b620a3e31f085cc906f8073fe81b2fad3

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -b2b4d629f100eaee9f5942a106b1ccefe85b8808

    Affected versions

    v3.0.0

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2022-29242 | CVE-DB