CVE-2022-29242

Buffer Overflow on creating key transport blob in GOST Engine

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.

Category

5.9
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.00% Top 25%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com
Affected: gost-engine engine
Published at:
Updated at:

References

Link Tags
https://github.com/gost-engine/engine/security/advisories/GHSA-2rmw-8wpg-vgw5 third party advisory
https://github.com/gost-engine/engine/commit/7df766124f87768b43b9e8947c5a01e17545772c patch third party advisory
https://github.com/gost-engine/engine/commit/b2b4d629f100eaee9f5942a106b1ccefe85b8808 patch third party advisory
https://github.com/gost-engine/engine/commit/c6655a0b620a3e31f085cc906f8073fe81b2fad3 patch third party advisory
https://github.com/gost-engine/engine/releases/tag/v3.0.1 third party advisory release notes

Frequently Asked Questions

What is the severity of CVE-2022-29242?
CVE-2022-29242 has been scored as a medium severity vulnerability.
How to fix CVE-2022-29242?
To fix CVE-2022-29242, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-29242 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-29242 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-29242?
CVE-2022-29242 affects gost-engine engine.
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