{"id":"DEBIAN-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.","modified":"2026-09-22T16:47:28.489860785Z","published":"2009-01-15T17:30:00.577Z","upstream":["CVE-2009-0127"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2009-0127"}],"affected":[{"package":{"name":"m2crypto","ecosystem":"Debian:12","purl":"pkg:deb/debian/m2crypto?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.38.0-4","0.38.0-4.1","0.40.1-1","0.40.1-2","0.40.1-3","0.40.1-4","0.41.0+ds-1","0.41.0+ds-2","0.41.0+ds-3","0.41.0-1","0.42.0-1","0.42.0-2","0.42.0-2.1","0.42.0-3","0.46.2-1","0.46.2-2","0.46.2-3"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2009-0127.json"}},{"package":{"name":"m2crypto","ecosystem":"Debian:13","purl":"pkg:deb/debian/m2crypto?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.42.0-3","0.46.2-1","0.46.2-2","0.46.2-3"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2009-0127.json"}}],"schema_version":"1.9.0"}