{"id":"CVE-2013-7176","aliases":["DEBIAN-CVE-2013-7176","DLA-0021-1","DSA-2979-1","EUVD-2013-6959","GHSA-c3p6-cwjh-4h46","MGASA-2014-0176","UBUNTU-CVE-2013-7176","openSUSE-SU-2024:10347-1"],"status":"published","title":"config/filter.d/postfix.conf in the postfix filter in Fail2ban before 0.8.11 allows remote...","description":"config/filter.d/postfix.conf in the postfix 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.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.03235,"percentile":0.88359,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-20"],"published":"2014-02-01T15:00:00Z","modified":"2026-09-01T20:02:36Z","fixes":[{"ecosystem":"Debian:12","package":"fail2ban","fixed_in":["0.8.11-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"fail2ban","fixed_in":["0.8.11-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"fail2ban","fixed_in":["0.8.11-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"fail2ban","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.8.11-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"fail2ban","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.8.11-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"fail2ban","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.8.11-1"}]}]},{"source":"osv","ecosystem":"Debian:6.0","package":"fail2ban","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.8.4-3+squeeze3"}]}],"versions":["0.8.4-3","0.8.4-3+squeeze1","0.8.4-3+squeeze2"],"bundled":2},{"source":"osv","ecosystem":"Debian:7","package":"fail2ban","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.8.6-3wheezy3"}]}],"versions":["0.8.6-3wheezy1","0.8.6-3wheezy2"],"bundled":2},{"source":"osv","ecosystem":"Mageia:3","package":"fail2ban","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.8.13-2.mga3"}]}],"bundled":2},{"source":"osv","ecosystem":"Mageia:4","package":"fail2ban","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.8.13-2.mga4"}]}],"bundled":2},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"fail2ban","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.9.5-1.1"}]}],"bundled":4}],"products":[{"vendor":"fail2ban","product":"fail2ban"}],"references":[{"url":"http://www.kb.cert.org/vuls/id/686662","tags":["third-party-advisory","x_refsource_CERT-VN","x_transferred","US Government Resource","web","report"]},{"url":"http://lists.opensuse.org/opensuse-updates/2014-03/msg00021.html","tags":["vendor-advisory","x_refsource_SUSE","x_transferred","web"]},{"url":"http://www.debian.org/security/2014/dsa-2979","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred","advisory"]},{"url":"https://github.com/fail2ban/fail2ban/commit/eb2f0c927257120dfc32d2450fd63f1962f38821","tags":["x_refsource_CONFIRM","x_transferred","Exploit","Patch","evidence","fix","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2013-7176"},{"url":"https://github.com/advisories/GHSA-c3p6-cwjh-4h46"},{"url":"https://security-tracker.debian.org/tracker/CVE-2013-7176","tags":["advisory"]},{"url":"https://advisories.mageia.org/MGASA-2014-0176.html","tags":["advisory"]},{"url":"https://github.com/fail2ban/fail2ban/releases","tags":["web"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=11569","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2013-7176","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2013-7176","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2009-5023","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2013-2178","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2013-7176","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2013-7177","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2013-7176","description":"config/filter.d/postfix.conf in the postfix 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.","status":"published","published":"2014-02-01T15:00:00Z","modified":"2024-08-06T18:01:20.161Z","updated_at":"2026-11-02T14:34:59.222149Z"}],"euvd":[{"id":"EUVD-2013-6959","description":"config/filter.d/postfix.conf in the postfix 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.","status":"published","published":"2014-02-01T15:00:00Z","modified":"2024-08-06T18:01:20Z","updated_at":"2026-11-03T01:56:23.942036Z"}],"ghsa":[{"id":"GHSA-c3p6-cwjh-4h46","title":"config/filter.d/postfix.conf in the postfix filter in Fail2ban before 0.8.11 allows remote...","description":"config/filter.d/postfix.conf in the postfix 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.","status":"published","published":"2022-05-17T04:21:32Z","modified":"2023-01-28T05:01:42Z","cwes":["CWE-20"],"updated_at":"2026-11-02T14:43:37.013144Z"}],"nvd":[{"id":"CVE-2013-7176","description":"config/filter.d/postfix.conf in the postfix 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.","status":"published","published":"2014-02-01T15:55:04.12Z","modified":"2026-06-17T00:01:29.417Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:02:48.062712Z"}],"osv":[{"id":"CVE-2013-7176","description":"config/filter.d/postfix.conf in the postfix 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.","status":"published","published":"2014-02-01T15:55:04Z","modified":"2026-04-16T06:18:52.19685366Z","updated_at":"2026-11-02T15:43:59.361892Z"},{"id":"DEBIAN-CVE-2013-7176","description":"config/filter.d/postfix.conf in the postfix 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.","status":"published","published":"2014-02-01T15:55:04.12Z","modified":"2026-09-01T20:02:36.529893403Z","updated_at":"2026-11-02T15:45:25.819707Z"},{"id":"DLA-0021-1","title":"fail2ban - security update","status":"published","published":"2014-07-26T00:00:00Z","modified":"2026-03-09T01:01:07.48947Z","updated_at":"2026-11-02T15:46:08.746073Z"},{"id":"DSA-2979-1","title":"fail2ban - security update","status":"published","published":"2014-07-17T00:00:00Z","modified":"2026-03-09T01:18:54.31222Z","updated_at":"2026-11-02T15:46:15.843838Z"},{"id":"MGASA-2014-0176","title":"Updated fail2ban packages fix security issues","description":"An update to fail2ban 0.8.13 has been released to fix security issues, \namongst other bugfixes. \n\nfail2ban versions prior to 0.8.11 would allow a remote unauthenticated \nattacker to cause arbitrary IP addresses to be blocked by Fail2ban causing \nlegitimate users to be blocked from accessing services protected by \nFail2ban. These services are cyrus-imap (CVE-2013-7177) and postfix \n(CVE-2013-7176).\n","status":"published","published":"2014-04-16T13:12:59Z","modified":"2026-04-16T06:23:46.743236483Z","updated_at":"2026-11-02T15:49:39.121227Z"},{"id":"openSUSE-SU-2024:10347-1","title":"SuSEfirewall2-fail2ban-0.9.5-1.1 on GA media","description":"These are all security issues fixed in the SuSEfirewall2-fail2ban-0.9.5-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T03:43:17.657533Z","updated_at":"2026-11-02T16:58:34.487567Z"},{"id":"UBUNTU-CVE-2013-7176","description":"config/filter.d/postfix.conf in the postfix 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.","status":"withdrawn","published":"2014-02-01T15:55:00Z","modified":"2025-07-16T07:31:30.964674Z","updated_at":"2026-11-02T15:54:07.421078Z"}]}}