{"id":"CVE-2018-1000179","aliases":["DEBIAN-CVE-2018-1000179","DSA-4189-1","EUVD-2018-1872","GHSA-6mrg-x4pw-vhr6","MGASA-2018-0243","UBUNTU-CVE-2018-1000179","USN-4594-1","openSUSE-SU-2024:11291-1"],"status":"published","title":"A NULL Pointer Dereference of CWE-476 exists in quassel version 0.12.4 in the quasselcore void...","description":"A NULL Pointer Dereference of CWE-476 exists in quassel version 0.12.4 in the quasselcore void CoreAuthHandler::handle(const Login \u0026msg) coreauthhandler.cpp line 235 that allows an attacker to cause a denial of service.","severity":{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.0228,"percentile":0.83249,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-476"],"published":"2018-05-02T00:00:00Z","modified":"2026-10-23T18:02:55Z","fixes":[{"ecosystem":"Debian:12","package":"quassel","fixed_in":["1:0.12.5-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"quassel","fixed_in":["1:0.12.5-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"quassel","fixed_in":["1:0.12.5-1"],"sources":["osv"]},{"ecosystem":"Ubuntu:14.04:LTS","package":"quassel","fixed_in":["0.10.0-0ubuntu2.3"],"sources":["osv"]},{"ecosystem":"Ubuntu:18.04:LTS","package":"quassel","fixed_in":["1:0.12.4-3ubuntu1.18.04.3"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"quassel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:0.12.5-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"quassel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:0.12.5-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"quassel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:0.12.5-1"}]}]},{"source":"osv","ecosystem":"Debian:8","package":"quassel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:0.10.0-2.3+deb8u4"}]}],"versions":["1:0.10.0-2.3","1:0.10.0-2.3+deb8u1","1:0.10.0-2.3+deb8u2","1:0.10.0-2.3+deb8u3"],"bundled":2},{"source":"osv","ecosystem":"Debian:9","package":"quassel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:0.12.4-2+deb9u1"}]}],"versions":["1:0.12.4-2"],"bundled":2},{"source":"osv","ecosystem":"Mageia:5","package":"quassel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.10.1-5.3.mga5"}]}],"bundled":2},{"source":"osv","ecosystem":"Mageia:6","package":"quassel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.12.5-1.mga6"}]}],"bundled":2},{"source":"osv","ecosystem":"Ubuntu:14.04:LTS","package":"quassel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.10.0-0ubuntu2.3"}]}],"versions":["0.9.1-0ubuntu1","0.9.2-0ubuntu1","0.9.2-0ubuntu2","0.9.2-0ubuntu3","0.9.2-0ubuntu4","0.10~beta1-0ubuntu1","0.10~rc1-0ubuntu1","0.10.0-0ubuntu1","0.10.0-0ubuntu2","0.10.0-0ubuntu2.1","0.10.0-0ubuntu2.2"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"quassel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.12.2-0ubuntu1","0.12.2-0ubuntu1.16.04.2"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"quassel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:0.12.4-3ubuntu1.18.04.3"}]}],"versions":["1:0.12.4-2ubuntu2","1:0.12.4-2ubuntu3","1:0.12.4-3ubuntu1","1:0.12.4-3ubuntu1.18.04.1","1:0.12.4-3ubuntu1.18.04.2"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"quassel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:0.12.4-3ubuntu1.18.04.3"}]}],"versions":["1:0.12.4-2ubuntu2","1:0.12.4-2ubuntu3","1:0.12.4-3ubuntu1","1:0.12.4-3ubuntu1.18.04.1","1:0.12.4-3ubuntu1.18.04.2"],"bundled":2}],"products":[{"vendor":"debian","product":"debian_linux"},{"vendor":"quassel-irc","product":"quassel"}],"references":[{"url":"https://www.debian.org/security/2018/dsa-4189","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred","Third Party Advisory","advisory"]},{"url":"https://security.gentoo.org/glsa/201806-04","tags":["vendor-advisory","x_refsource_GENTOO","x_transferred","Third Party Advisory","advisory"]},{"url":"https://github.com/quassel/quassel/blob/master/src/core/coreauthhandler.cpp#L236","tags":["x_refsource_CONFIRM","x_transferred","Exploit","Third Party Advisory","evidence"]},{"url":"https://usn.ubuntu.com/4594-1/","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-1000179"},{"url":"https://github.com/advisories/GHSA-6mrg-x4pw-vhr6"},{"url":"https://security-tracker.debian.org/tracker/CVE-2018-1000179","tags":["advisory"]},{"url":"https://advisories.mageia.org/MGASA-2018-0243.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=22957","tags":["report"]},{"url":"http://openwall.com/lists/oss-security/2018/05/01/1","tags":["web"]},{"url":"https://quassel-irc.org/node/130","tags":["web"]},{"url":"https://ubuntu.com/security/CVE-2018-1000179","tags":["report"]},{"url":"https://github.com/quassel/quassel/commit/e17fca767d60c06ca02bc5898ced04f06d3670bd","tags":["report"]},{"url":"https://github.com/quassel/quassel/commit/08bace4e9ecf08273f094c0c6aa8b3363d38ac3e","tags":["report"]},{"url":"http://www.openwall.com/lists/oss-security/2018/04/27/1","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-4594-1","tags":["advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2018-1000179","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2018-1000178","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2018-1000178","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-1000179","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2018-1000179","description":"A NULL Pointer Dereference of CWE-476 exists in quassel version 0.12.4 in the quasselcore void CoreAuthHandler::handle(const Login \u0026msg) coreauthhandler.cpp line 235 that allows an attacker to cause a denial of service.","status":"published","published":"2018-05-08T15:00:00Z","modified":"2024-08-05T12:33:49.457Z","updated_at":"2026-11-02T14:35:10.685174Z"}],"euvd":[{"id":"EUVD-2018-1872","description":"A NULL Pointer Dereference of CWE-476 exists in quassel version 0.12.4 in the quasselcore void CoreAuthHandler::handle(const Login \u0026msg) coreauthhandler.cpp line 235 that allows an attacker to cause a denial of service.","status":"published","published":"2018-05-08T15:00:00Z","modified":"2024-08-05T12:33:49Z","updated_at":"2026-11-03T02:39:26.824954Z"}],"ghsa":[{"id":"GHSA-6mrg-x4pw-vhr6","title":"A NULL Pointer Dereference of CWE-476 exists in quassel version 0.12.4 in the quasselcore void...","description":"A NULL Pointer Dereference of CWE-476 exists in quassel version 0.12.4 in the quasselcore void CoreAuthHandler::handle(const Login \u0026msg) coreauthhandler.cpp line 235 that allows an attacker to cause a denial of service.","status":"published","published":"2022-05-13T01:14:05Z","modified":"2023-02-01T05:04:14Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:50:08.411477Z"}],"nvd":[{"id":"CVE-2018-1000179","description":"A NULL Pointer Dereference of CWE-476 exists in quassel version 0.12.4 in the quasselcore void CoreAuthHandler::handle(const Login \u0026msg) coreauthhandler.cpp line 235 that allows an attacker to cause a denial of service.","status":"published","published":"2018-05-08T15:29:00.723Z","modified":"2026-06-17T01:32:37.08Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:04:26.098615Z"}],"osv":[{"id":"CVE-2018-1000179","description":"A NULL Pointer Dereference of CWE-476 exists in quassel version 0.12.4 in the quasselcore void CoreAuthHandler::handle(const Login \u0026msg) coreauthhandler.cpp line 235 that allows an attacker to cause a denial of service.","status":"published","published":"2018-05-08T15:29:00.723Z","modified":"2026-10-20T10:49:32.085590307Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:07.192756Z"},{"id":"DEBIAN-CVE-2018-1000179","description":"A NULL Pointer Dereference of CWE-476 exists in quassel version 0.12.4 in the quasselcore void CoreAuthHandler::handle(const Login \u0026msg) coreauthhandler.cpp line 235 that allows an attacker to cause a denial of service.","status":"published","published":"2018-05-08T15:29:00.723Z","modified":"2026-10-23T18:02:55.664689777Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:29.988046Z"},{"id":"UBUNTU-CVE-2018-1000179","description":"A NULL Pointer Dereference of CWE-476 exists in quassel version 0.12.4 in the quasselcore void CoreAuthHandler::handle(const Login \u0026msg) coreauthhandler.cpp line 235 that allows an attacker to cause a denial of service.","status":"published","published":"2018-05-08T15:29:00Z","modified":"2026-02-04T03:21:51.549648Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:54:16.154988Z"},{"id":"DSA-4189-1","title":"quassel - security update","status":"published","published":"2018-05-02T00:00:00Z","modified":"2026-03-09T01:22:36.859326Z","updated_at":"2026-11-02T15:46:16.862196Z"},{"id":"MGASA-2018-0243","title":"Updated quassel packages fix security vulnerabilities","description":"A heap corruption exists in quassel version 0.12.4 in quasselcore that\nallows an attacker to execute code remotely (CVE-2018-1000178).\n\nA NULL Pointer Dereference exists in quassel version 0.12.4 in the\nquasselcore that allows an atacker to denial of service by attempting a\nlogin when the database is not initialized (CVE-2018-1000179).\n\nThe Mageia 5 package has been patched to fix these issues and the\nMageia 6 package has been upgraded to version 0.12.5, which also has\nother fixes and improvements.\n","status":"published","published":"2018-05-16T08:24:56Z","modified":"2026-04-16T06:22:53.835085886Z","updated_at":"2026-11-02T15:49:40.442238Z"},{"id":"openSUSE-SU-2024:11291-1","title":"quassel-base-0.13.1-4.10 on GA media","description":"These are all security issues fixed in the quassel-base-0.13.1-4.10 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T02:39:14.379223Z","updated_at":"2026-11-02T16:58:34.894275Z"},{"id":"USN-4594-1","title":"quassel vulnerabilities","description":"It was discovered that Quassel incorrectly handled Qdatastream protocol. A\nremote attacker could possibly use this issue to execute arbitrary code.\n(CVE-2018-1000178)\n\nIt was discovered that Quassel incorrectly handled certain login requests.\nA remote attacker could possibly use this issue to cause a denial of\nservice. (CVE-2018-1000179)\n","status":"published","published":"2020-10-20T18:56:12Z","modified":"2026-04-27T15:44:32.579038Z","updated_at":"2026-11-02T16:58:15.159055Z"}]}}