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CVE-2022-29242

Status: ModifiedHigh (7.5)—

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.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Gost Engine Project — Gost Engine

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2022-29242",
  "cveTags": [],
  "metrics": {
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          "version": "2.0.3",
          "timestamp": "2025-04-23T14:06:47.434124Z"
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          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
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  "published": "2022-05-24T15:15:08.097",
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      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-120"
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    {
      "lang": "en",
      "value": "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."
    },
    {
      "lang": "es",
      "value": "GOST engine es una implementación de referencia de los algoritmos criptográficos rusos GOST para OpenSSL. Los clientes TLS usando el motor GOST cuando el cifrado \"TLS_GOSTR341112_256_WITH_KUZNYECHIK_CTR_OMAC\" está acordado y el servidor usa claves secretas GOST de 512 bits son vulnerables a un desbordamiento del búfer. GOST engine versión 3.0.1 contiene un parche para este problema. Deshabilitar el cifrado \"TLS_GOSTR341112_256_WITH_KUZNYECHIK_CTR_OMAC\" es una posible mitigación"
    }
  ],
  "lastModified": "2026-06-17T04:39:54.073",
  "configurations": [
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}