CVE-2022-29242 — GOST engine is a reference implementation of the Russian GOST crypto algorithms
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. GOS
Published
2022-05-24T14:55:13.000Z
Last modified
2025-04-23T18:22:15.726Z
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
01What is this vulnerability?
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…
02Affected products
| Vendor | Product | Versions |
|---|
| gost-engine | engine | < 3.0.1 |
03Active exploitation status
Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.
04Recommended remediation
- Patch to a fixed version listed in the vendor advisory (see references below).
- Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
- Hunt historical logs for exploitation indicators — see Detection signatures below.
05Technical details
For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.
06Detection signatures
Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.
07Related CVEs
No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.
08Timeline
- Published: 2022-05-24T14:55:13.000Z
- Last modified: 2025-04-23T18:22:15.726Z
09References
- github.com — https://github.com/gost-engine/engine/security/advisories/GHSA-2rmw-8wpg-vgw5
- github.com — https://github.com/gost-engine/engine/commit/7df766124f87768b43b9e8947c5a01e1754…
- github.com — https://github.com/gost-engine/engine/commit/b2b4d629f100eaee9f5942a106b1ccefe85…
- github.com — https://github.com/gost-engine/engine/commit/c6655a0b620a3e31f085cc906f8073fe81b…
- github.com — https://github.com/gost-engine/engine/releases/tag/v3.0.1
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