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CVE-2022-29242

Date: May 24, 2022

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.

Language: C

Severity Score

Related Resources (8)

https://nvd.nist.gov/vuln/detail/CVE-2022-29242
https://github.com/gost-engine/engine/commit/7df766124f87768b43b9e8947c5a01e17545772c
https://security-tracker.debian.org/tracker/CVE-2022-29242
https://github.com/gost-engine/engine/security/advisories/GHSA-2rmw-8wpg-vgw5
https://github.com/gost-engine/engine/commit/b2b4d629f100eaee9f5942a106b1ccefe85b8808
https://github.com/gost-engine/engine/releases/tag/v3.0.1
https://github.com/gost-engine/engine/commit/c6655a0b620a3e31f085cc906f8073fe81b2fad3
https://www.mend.io/vulnerability-database/CVE-2022-29242

Severity Score

Weakness Type (CWE)

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

CWE-120

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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