{"id":"CVE-2010-1155","aliases":["DEBIAN-CVE-2010-1155","EUVD-2010-1186","GHSA-hvgv-8rp6-894g","openSUSE-SU-2024:10455-1"],"status":"published","title":"Irssi before 0.8.15, when SSL is used, does not verify that the server hostname matches a domain...","description":"Irssi before 0.8.15, when SSL is used, does not verify that the server hostname matches a domain name in the subject's Common Name (CN) field or a Subject Alternative Name field of the X.509 certificate, which allows man-in-the-middle attackers to spoof IRC servers via an arbitrary certificate.","severity":{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01562,"percentile":0.75423,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-20"],"published":"2010-04-16T19:00:00Z","modified":"2026-10-23T17:47:41Z","fixes":[{"ecosystem":"Debian:12","package":"irssi","fixed_in":["0.8.15-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"irssi","fixed_in":["0.8.15-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"irssi","fixed_in":["0.8.15-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"irssi","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.8.15-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"irssi","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.8.15-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"irssi","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.8.15-1"}]}]},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"irssi","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.8.20-3.1"}]}],"bundled":6}],"products":[{"vendor":"irssi","product":"irssi"}],"references":[{"url":"http://marc.info/?l=oss-security\u0026m=127110132019166\u0026w=2","tags":["mailing-list","x_refsource_MLIST","x_transferred","web"]},{"url":"http://marc.info/?l=oss-security\u0026m=127116251220784\u0026w=2","tags":["mailing-list","x_refsource_MLIST","x_transferred","web"]},{"url":"http://www.vupen.com/english/advisories/2010/0856","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","Patch","Vendor Advisory","advisory","fix"]},{"url":"http://www.vupen.com/english/advisories/2010/1110","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","advisory"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/57790","tags":["vdb-entry","x_refsource_XF","x_transferred","web"]},{"url":"http://www.vupen.com/english/advisories/2010/1107","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","advisory"]},{"url":"http://www.vupen.com/english/advisories/2010/0987","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","advisory"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2010-05/msg00001.html","tags":["vendor-advisory","x_refsource_SUSE","x_transferred","web"]},{"url":"http://marc.info/?l=oss-security\u0026m=127119240204394\u0026w=2","tags":["mailing-list","x_refsource_MLIST","x_transferred","web"]},{"url":"http://secunia.com/advisories/39620","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","advisory"]},{"url":"http://secunia.com/advisories/39365","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory","advisory"]},{"url":"http://www.ubuntu.com/usn/USN-929-1","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred","advisory"]},{"url":"http://irssi.org/news","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"http://marc.info/?l=oss-security\u0026m=127098845125270\u0026w=2","tags":["mailing-list","x_refsource_MLIST","x_transferred","web"]},{"url":"http://slackware.com/security/viewer.php?l=slackware-security\u0026y=2010\u0026m=slackware-security.497301","tags":["vendor-advisory","x_refsource_SLACKWARE","x_transferred","web"]},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2010-May/041054.html","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","web"]},{"url":"http://github.com/ensc/irssi-proxy/commit/85bbc05b21678e80423815d2ef1dfe26208491ab","tags":["x_refsource_CONFIRM","x_transferred","fix"]},{"url":"http://irssi.org/news/ChangeLog","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"http://secunia.com/advisories/39797","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2010-1155"},{"url":"https://github.com/advisories/GHSA-hvgv-8rp6-894g"},{"url":"https://security-tracker.debian.org/tracker/CVE-2010-1155","tags":["advisory"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2009-1959","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2010-1154","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2010-1155","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-7044","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-7045","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-7553","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2010-1155","description":"Irssi before 0.8.15, when SSL is used, does not verify that the server hostname matches a domain name in the subject's Common Name (CN) field or a Subject Alternative Name field of the X.509 certificate, which allows man-in-the-middle attackers to spoof IRC servers via an arbitrary certificate.","status":"published","published":"2010-04-16T19:00:00Z","modified":"2024-08-07T01:14:06.324Z","updated_at":"2026-11-02T14:33:29.227451Z"}],"euvd":[{"id":"EUVD-2010-1186","description":"Irssi before 0.8.15, when SSL is used, does not verify that the server hostname matches a domain name in the subject's Common Name (CN) field or a Subject Alternative Name field of the X.509 certificate, which allows man-in-the-middle attackers to spoof IRC servers via an arbitrary certificate.","status":"published","published":"2010-04-16T19:00:00Z","modified":"2024-08-07T01:14:06Z","updated_at":"2026-11-03T01:39:42.741336Z"}],"ghsa":[{"id":"GHSA-hvgv-8rp6-894g","title":"Irssi before 0.8.15, when SSL is used, does not verify that the server hostname matches a domain...","description":"Irssi before 0.8.15, when SSL is used, does not verify that the server hostname matches a domain name in the subject's Common Name (CN) field or a Subject Alternative Name field of the X.509 certificate, which allows man-in-the-middle attackers to spoof IRC servers via an arbitrary certificate.","status":"published","published":"2022-05-02T06:19:32Z","modified":"2023-02-01T05:00:46Z","cwes":["CWE-20"],"updated_at":"2026-11-02T14:49:35.850631Z"}],"nvd":[{"id":"CVE-2010-1155","description":"Irssi before 0.8.15, when SSL is used, does not verify that the server hostname matches a domain name in the subject's Common Name (CN) field or a Subject Alternative Name field of the X.509 certificate, which allows man-in-the-middle attackers to spoof IRC servers via an arbitrary certificate.","status":"published","published":"2010-04-16T19:30:00.35Z","modified":"2026-06-16T23:17:37.21Z","cvss":[{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:01:45.97784Z"}],"osv":[{"id":"CVE-2010-1155","description":"Irssi before 0.8.15, when SSL is used, does not verify that the server hostname matches a domain name in the subject's Common Name (CN) field or a Subject Alternative Name field of the X.509 certificate, which allows man-in-the-middle attackers to spoof IRC servers via an arbitrary certificate.","status":"published","published":"2010-04-16T19:30:00Z","modified":"2026-04-10T03:41:11.315145Z","updated_at":"2026-11-02T15:43:57.714116Z"},{"id":"DEBIAN-CVE-2010-1155","description":"Irssi before 0.8.15, when SSL is used, does not verify that the server hostname matches a domain name in the subject's Common Name (CN) field or a Subject Alternative Name field of the X.509 certificate, which allows man-in-the-middle attackers to spoof IRC servers via an arbitrary certificate.","status":"published","published":"2010-04-16T19:30:00.35Z","modified":"2026-10-23T17:47:41.422467195Z","updated_at":"2026-11-02T15:45:24.316685Z"},{"id":"openSUSE-SU-2024:10455-1","title":"irssi-0.8.20-3.1 on GA media","description":"These are all security issues fixed in the irssi-0.8.20-3.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T04:38:50.308463Z","updated_at":"2026-11-02T16:58:34.487567Z"}]}}