CVE-2022-29242 Buffer Overflow on creating key transport blob in GOST Engine

2022-05-2414:55:13

CWE-120

GitHub_M

www.cve.org

5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.002 Low

EPSS

Percentile

51.8%

JSON

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.

CNA Affected

[
  {
    "product": "engine",
    "vendor": "gost-engine",
    "versions": [
      {
        "status": "affected",
        "version": "< 3.0.1"
      }
    ]
  }
]