{"id":"CVE-2018-0490","aliases":["DEBIAN-CVE-2018-0490","DSA-4183-1","EUVD-2018-1313","GHSA-f8j8-3mmq-3xxf","MGASA-2018-0161","UBUNTU-CVE-2018-0490","openSUSE-SU-2018:0614-1","openSUSE-SU-2018:0620-1","openSUSE-SU-2024:11469-1"],"status":"published","title":"An issue was discovered in Tor before 0.2.9.15, 0.3.1.x before 0.3.1.10, and 0.3.2.x before 0.3.2...","description":"An issue was discovered in Tor before 0.2.9.15, 0.3.1.x before 0.3.1.10, and 0.3.2.x before 0.3.2.10. The directory-authority protocol-list subprotocol implementation allows remote attackers to cause a denial of service (NULL pointer dereference and directory-authority crash) via a misformatted relay descriptor that is mishandled during voting.","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":0.02641,"percentile":0.8568,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-476"],"published":"2018-03-05T15:00:00Z","modified":"2026-10-24T10:30:38Z","fixes":[{"ecosystem":"Debian:12","package":"tor","fixed_in":["0.3.2.10-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"tor","fixed_in":["0.3.2.10-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"tor","fixed_in":["0.3.2.10-1"],"sources":["osv"]},{"ecosystem":"Debian:9","package":"tor","fixed_in":["0.2.9.15-1"],"sources":["osv"]},{"ecosystem":"Ubuntu:16.04:LTS","package":"tor","fixed_in":["0.2.9.14-1ubuntu1~16.04.3"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"tor","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.3.2.10-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"tor","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.3.2.10-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"tor","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.3.2.10-1"}]}]},{"source":"osv","ecosystem":"Debian:9","package":"tor","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.2.9.15-1"}]}],"versions":["0.2.9.10-1","0.2.9.11-1","0.2.9.11-1~bpo8+1","0.2.9.11-1~deb9u1","0.2.9.12-1","0.2.9.12-1~bpo8+1","0.2.9.13-1","0.2.9.14-1","0.2.9.14-1~bpo8+1"]},{"source":"osv","ecosystem":"Mageia:6","package":"tor","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.2.9.15-1.mga6"}]}],"bundled":2},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"tor","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.2.9.14-1ubuntu1~16.04.3"}]}],"versions":["0.2.6.10-1ubuntu2","0.2.7.6-1ubuntu1","0.2.9.11-1ubuntu1~16.04.1","0.2.9.14-1ubuntu1~16.04.1","0.2.9.14-1ubuntu1~16.04.2"]},{"source":"osv","ecosystem":"SUSE:Package Hub 12","package":"tor","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.3.2.10-14.1"}]}],"bundled":2},{"source":"osv","ecosystem":"SUSE:Package Hub 12","package":"tor","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.3.2.10-14.1"}]}],"bundled":2},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"tor","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.4.6.7-2.2"}]}],"bundled":22}],"products":[{"vendor":"debian","product":"debian_linux"},{"vendor":"torproject","product":"tor"}],"references":[{"url":"https://trac.torproject.org/projects/tor/ticket/25074","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory","report"]},{"url":"https://www.debian.org/security/2018/dsa-4183","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred","Third Party Advisory","advisory"]},{"url":"https://blog.torproject.org/new-stable-tor-releases-security-fixes-and-dos-prevention-03210-03110-02915","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory","web","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-0490"},{"url":"https://github.com/advisories/GHSA-f8j8-3mmq-3xxf"},{"url":"https://security-tracker.debian.org/tracker/CVE-2018-0490","tags":["advisory"]},{"url":"https://advisories.mageia.org/MGASA-2018-0161.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=22690","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2018-0490","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2018-0490","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1083845","tags":["report"]},{"url":"https://bugzilla.suse.com/1083846","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2018-0490","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-0491","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-1254","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-0375","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-0376","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-0377","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-0380","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-8819","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-8820","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-8821","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-8822","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-8823","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-8955","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-10592","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-10593","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-15572","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-28089","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-28090","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-34548","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-34549","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-34550","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-38385","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2018-0490","description":"An issue was discovered in Tor before 0.2.9.15, 0.3.1.x before 0.3.1.10, and 0.3.2.x before 0.3.2.10. The directory-authority protocol-list subprotocol implementation allows remote attackers to cause a denial of service (NULL pointer dereference and directory-authority crash) via a misformatted relay descriptor that is mishandled during voting.","status":"published","published":"2018-03-05T15:00:00Z","modified":"2024-08-05T03:28:10.607Z","updated_at":"2026-11-02T14:35:12.160284Z"}],"euvd":[{"id":"EUVD-2018-1313","description":"An issue was discovered in Tor before 0.2.9.15, 0.3.1.x before 0.3.1.10, and 0.3.2.x before 0.3.2.10. The directory-authority protocol-list subprotocol implementation allows remote attackers to cause a denial of service (NULL pointer dereference and directory-authority crash) via a misformatted relay descriptor that is mishandled during voting.","status":"published","published":"2018-03-05T15:00:00Z","modified":"2024-08-05T03:28:10Z","updated_at":"2026-11-03T02:40:18.31448Z"}],"ghsa":[{"id":"GHSA-f8j8-3mmq-3xxf","title":"An issue was discovered in Tor before 0.2.9.15, 0.3.1.x before 0.3.1.10, and 0.3.2.x before 0.3.2...","description":"An issue was discovered in Tor before 0.2.9.15, 0.3.1.x before 0.3.1.10, and 0.3.2.x before 0.3.2.10. The directory-authority protocol-list subprotocol implementation allows remote attackers to cause a denial of service (NULL pointer dereference and directory-authority crash) via a misformatted relay descriptor that is mishandled during voting.","status":"published","published":"2022-05-14T01:06:13Z","modified":"2023-02-02T05:03:04Z","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":"2026-11-02T14:51:33.931227Z"}],"nvd":[{"id":"CVE-2018-0490","description":"An issue was discovered in Tor before 0.2.9.15, 0.3.1.x before 0.3.1.10, and 0.3.2.x before 0.3.2.10. The directory-authority protocol-list subprotocol implementation allows remote attackers to cause a denial of service (NULL pointer dereference and directory-authority crash) via a misformatted relay descriptor that is mishandled during voting.","status":"published","published":"2018-03-05T15:29:00.207Z","modified":"2026-06-17T01:30:56.853Z","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":"2026-11-02T14:04:23.783914Z"}],"osv":[{"id":"CVE-2018-0490","description":"An issue was discovered in Tor before 0.2.9.15, 0.3.1.x before 0.3.1.10, and 0.3.2.x before 0.3.2.10. The directory-authority protocol-list subprotocol implementation allows remote attackers to cause a denial of service (NULL pointer dereference and directory-authority crash) via a misformatted relay descriptor that is mishandled during voting.","status":"published","published":"2018-03-05T15:29:00.207Z","modified":"2026-10-24T10:30:38.491207279Z","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-2018-0490","description":"An issue was discovered in Tor before 0.2.9.15, 0.3.1.x before 0.3.1.10, and 0.3.2.x before 0.3.2.10. The directory-authority protocol-list subprotocol implementation allows remote attackers to cause a denial of service (NULL pointer dereference and directory-authority crash) via a misformatted relay descriptor that is mishandled during voting.","status":"published","published":"2018-03-05T15:29:00.207Z","modified":"2026-10-23T18:02:55.555663834Z","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-2018-0490","description":"An issue was discovered in Tor before 0.2.9.15, 0.3.1.x before 0.3.1.10, and 0.3.2.x before 0.3.2.10. The directory-authority protocol-list subprotocol implementation allows remote attackers to cause a denial of service (NULL pointer dereference and directory-authority crash) via a misformatted relay descriptor that is mishandled during voting.","status":"published","published":"2018-03-05T15:29:00Z","modified":"2025-09-08T16:44:37Z","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-4183-1","title":"tor - security update","status":"published","published":"2018-04-28T00:00:00Z","modified":"2026-03-09T01:20:18.178761Z","updated_at":"2026-11-02T15:46:16.862196Z"},{"id":"MGASA-2018-0161","title":"Updated tor packages fix security vulnerabilities","description":"A protocol-list handling bug that could be used to remotely crash\ndirectory authorities with a null-pointer exception (CVE-2018-0490).\n\nA bug can be remotely triggered in order to crash relays with a\nuse-after-free pattern (CVE-2018-0491).\n","status":"published","published":"2018-03-07T20:37:26Z","modified":"2026-04-16T06:25:38.707594489Z","updated_at":"2026-11-02T15:49:40.442238Z"},{"id":"openSUSE-SU-2018:0614-1","title":"Security update for tor","description":"This update for tor to version 0.3.2.10 fixes security issues and bugs.\n\nThe following vulnerabilities were fixed:\n\n- CVE-2018-0490: remote crash vulnerability against directory authorities (boo#1083845, TROVE-2018-001)\n- CVE-2018-0491: remote relay crash (boo#1083846, TROVE-2018-002)\n\nThis new upstream stable version also contains a new system for improved resistance to DoS attacks against relays and various other bug fixes.","status":"published","published":"2018-03-06T19:19:46Z","modified":"2026-02-04T03:11:39.019455Z","updated_at":"2026-11-02T16:58:30.39372Z"},{"id":"openSUSE-SU-2018:0620-1","title":"Security update for tor","description":"This update for tor to version 0.3.2.10 fixes security issues and bugs.\n\nThe following vulnerabilities were fixed:\n\n- CVE-2018-0490: remote crash vulnerability against directory authorities (boo#1083845, TROVE-2018-001)\n- CVE-2018-0491: remote relay crash (boo#1083846, TROVE-2018-002)\n\nThis new upstream stable version also contains a new system for improved resistance to DoS attacks against relays and various other bug fixes.","status":"published","published":"2018-03-06T19:19:46Z","modified":"2026-02-04T04:02:05.499138Z","updated_at":"2026-11-02T16:58:30.39372Z"},{"id":"openSUSE-SU-2024:11469-1","title":"tor-0.4.6.7-2.2 on GA media","description":"These are all security issues fixed in the tor-0.4.6.7-2.2 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T03:58:38.644616Z","updated_at":"2026-11-02T16:58:35.195147Z"}]}}