{"id":"UBUNTU-CVE-2009-3941","details":"Martin Lambers mpop before 1.0.19, when OpenSSL is used, does not properly handle a '\\0' character in a domain name in the (1) subject's Common Name or (2) Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.","modified":"2025-07-16T07:16:57.667615Z","published":"2009-11-16T19:30:00Z","withdrawn":"2025-07-18T16:42:39Z","upstream":["CVE-2009-3941"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2009-3941"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2009-3941"}],"affected":[{"package":{"name":"mpop","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/mpop@1.0.28-1?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.28-1"}]}],"ecosystem_specific":{"binaries":[{"binary_name":"mpop","binary_version":"1.0.28-1"},{"binary_name":"mpop-gnome","binary_version":"1.0.28-1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2009/UBUNTU-CVE-2009-3941.json"}}],"schema_version":"1.7.3","severity":[{"type":"Ubuntu","score":"medium"}]}