CVE-2022-29242

Name: CVE-2022-29242
Creator: NVD / NIST
Published: 2022-05-24T15:15:08.097+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.56%

Last modified Jun 17, 2026

CVE-2022-29242 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 1.56% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

1.56%

72.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-120

Affected Software

Vendor	Product	Versions
Gost Engine Project	Gost Engine	< 3.0.1

References

https://github.com/gost-engine/engine/commit/7df766124f87768b43b9e8947c5a01e17545772cPatch, Third Party Advisory
https://github.com/gost-engine/engine/commit/b2b4d629f100eaee9f5942a106b1ccefe85b8808Patch, Third Party Advisory
https://github.com/gost-engine/engine/commit/c6655a0b620a3e31f085cc906f8073fe81b2fad3Patch, Third Party Advisory
https://github.com/gost-engine/engine/releases/tag/v3.0.1Release Notes, Third Party Advisory
https://github.com/gost-engine/engine/security/advisories/GHSA-2rmw-8wpg-vgw5Third Party Advisory
https://github.com/gost-engine/engine/commit/7df766124f87768b43b9e8947c5a01e17545772cPatch, Third Party Advisory
https://github.com/gost-engine/engine/commit/b2b4d629f100eaee9f5942a106b1ccefe85b8808Patch, Third Party Advisory
https://github.com/gost-engine/engine/commit/c6655a0b620a3e31f085cc906f8073fe81b2fad3Patch, Third Party Advisory
https://github.com/gost-engine/engine/releases/tag/v3.0.1Release Notes, Third Party Advisory
https://github.com/gost-engine/engine/security/advisories/GHSA-2rmw-8wpg-vgw5Third Party Advisory

Timeline

Published: May 24, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-29242?

How severe is CVE-2022-29242?

CVE-2022-29242 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.56% probability of exploitation in the next 30 days.

How do I fix CVE-2022-29242?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-29242?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST