{"id":"UBUNTU-CVE-2013-7177","details":"config/filter.d/cyrus-imap.conf in the cyrus-imap filter in Fail2ban before 0.8.11 allows remote attackers to trigger the blocking of an arbitrary IP address via a crafted e-mail address that matches an improperly designed regular expression.","modified":"2025-07-16T07:31:31.034728Z","published":"2014-02-01T15:55:00Z","withdrawn":"2025-07-18T16:42:57Z","upstream":["CVE-2013-7177"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2013-7177"},{"type":"REPORT","url":"https://github.com/fail2ban/fail2ban/commit/bd175f026737d66e7110868fb50b3760ff75e087"},{"type":"REPORT","url":"http://www.kb.cert.org/vuls/id/686662"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2013-7177"}],"affected":[{"package":{"name":"fail2ban","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/fail2ban@0.8.11-1?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.8.11-1"}]}],"versions":["0.8.10-3","0.8.11~pre1+git29-gccd2657-1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"fail2ban","binary_version":"0.8.11-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2013/UBUNTU-CVE-2013-7177.json"}}],"schema_version":"1.7.3","severity":[{"type":"Ubuntu","score":"medium"}]}