CVE-2022-29242

Summary

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 Software

Weaknesses

• CWE-120: CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

ADP Enrichment

CVE Program Container

Additional References

• https://github.com/gost-engine/engine/security/advisories/GHSA-2rmw-8wpg-vgw5
• https://github.com/gost-engine/engine/commit/7df766124f87768b43b9e8947c5a01e17545772c
• https://github.com/gost-engine/engine/commit/b2b4d629f100eaee9f5942a106b1ccefe85b8808
• https://github.com/gost-engine/engine/commit/c6655a0b620a3e31f085cc906f8073fe81b2fad3
• https://github.com/gost-engine/engine/releases/tag/v3.0.1

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: partial

References

• https://github.com/gost-engine/engine/security/advisories/GHSA-2rmw-8wpg-vgw5
• https://github.com/gost-engine/engine/commit/7df766124f87768b43b9e8947c5a01e17545772c
• https://github.com/gost-engine/engine/commit/b2b4d629f100eaee9f5942a106b1ccefe85b8808
• https://github.com/gost-engine/engine/commit/c6655a0b620a3e31f085cc906f8073fe81b2fad3
• https://github.com/gost-engine/engine/releases/tag/v3.0.1

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