Unrated severityNVD Advisory· Published Jan 15, 2009· Updated Jun 16, 2026
CVE-2009-0127
CVE-2009-0127
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.
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Affected products
2- cpe:2.3:a:heikkitoivonen:m2crypto:-:*:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
3- bugzilla.redhat.com/show_bug.cginvdExploitIssue Tracking
- bugs.debian.org/cgi-bin/bugreport.cginvdThird Party Advisory
- openwall.com/lists/oss-security/2009/01/12/4nvdMailing List
News mentions
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