VULNERABILITY INTELLIGENCE

CVE-2009-0127

CVSS score5 MEDIUM
EPSS probability1.38%
CISA KEVNot currently listed
Published2009-01-15
Last modified2026-06-16
CVSS vectorAV:N/AC:L/Au:N/C:P/I:N/A:N

Description

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.

Weakness classification

  • CWE-287: Improper Authentication

Primary references