{
  "modified": "2025-08-09T19:01:27Z",
  "published": "2009-01-15T17:30:00Z",
  "id": "CVE-2009-0127",
  "details": "M2Crypto does not properly check the return value from the OpenSSL EVP_VerifyFinal, DSA_verify, ECDSA_verify, DSA_do_verify, and ECDSA_do_verify functions, which might allow remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature, a similar vulnerability to CVE-2008-5077.  NOTE: a Linux vendor disputes the relevance of this report to the M2Crypto product because \"these functions are not used anywhere in m2crypto.",
  "references": [
    {
      "type": "ADVISORY",
      "url": "http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=511515"
    },
    {
      "type": "ARTICLE",
      "url": "http://openwall.com/lists/oss-security/2009/01/12/4"
    },
    {
      "type": "EVIDENCE",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=479676"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=479676"
    }
  ],
  "database_specific": {
    "isDisputed": true
  }
}