{"id":"CVE-2015-2928","aliases":["DEBIAN-CVE-2015-2928","DLA-187-1","DSA-3216-1","EUVD-2015-3013","GHSA-f48h-2gff-477g","MGASA-2015-0151","UBUNTU-CVE-2015-2928","openSUSE-SU-2024:10423-1"],"status":"published","title":"The Hidden Service (HS) server implementation in Tor before 0.2.4.27, 0.2.5.x before 0.2.5.12,...","description":"The Hidden Service (HS) server implementation in Tor before 0.2.4.27, 0.2.5.x before 0.2.5.12, and 0.2.6.x before 0.2.6.7 allows remote attackers to cause a denial of service (assertion failure and daemon exit) via unspecified vectors.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01384,"percentile":0.72376,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2015-04-06T00:00:00Z","modified":"2026-09-09T07:00:32Z","fixes":[{"ecosystem":"Debian:12","package":"tor","fixed_in":["0.2.5.12-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"tor","fixed_in":["0.2.5.12-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"tor","fixed_in":["0.2.5.12-1"],"sources":["osv"]},{"ecosystem":"Ubuntu:14.04:LTS","package":"tor","fixed_in":["0.2.4.27-1build0.14.04.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"tor","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.2.5.12-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"tor","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.2.5.12-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"tor","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.2.5.12-1"}]}]},{"source":"osv","ecosystem":"Debian:6.0","package":"tor","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.2.4.27-1~deb6u1"}]}],"versions":["0.2.1.29-1","0.2.1.30-1","0.2.1.31-1","0.2.1.31-1~lenny+1","0.2.1.32-1","0.2.2.1-alpha-1","0.2.2.10-alpha-1","0.2.2.10-alpha-2","0.2.2.11-alpha-1","0.2.2.12-alpha-1","0.2.2.13-alpha-1","0.2.2.14-alpha-1","0.2.2.15-alpha-1","0.2.2.16-alpha-1","0.2.2.17-alpha-1","0.2.2.18-alpha-1","0.2.2.18-alpha-2","0.2.2.19-alpha-1","0.2.2.2-alpha-1","0.2.2.20-alpha-1","0.2.2.21-alpha-1","0.2.2.22-alpha-1","0.2.2.23-alpha-1","0.2.2.27-beta-1","0.2.2.28-beta-1","0.2.2.29-beta-1","0.2.2.3-alpha-1","0.2.2.30-rc-1","0.2.2.31-rc-1","0.2.2.32-1","0.2.2.32-1~bpo60+1","0.2.2.33-1","0.2.2.33-1~bpo60+1","0.2.2.34-1","0.2.2.34-1~bpo60+1","0.2.2.35-1","0.2.2.35-1~squeeze+1","0.2.2.36-1","0.2.2.37-1","0.2.2.37-1~bpo60+1","0.2.2.37-1~squeeze+1","0.2.2.38-1","0.2.2.39-1","0.2.2.4-alpha-1","0.2.2.5-alpha-1","0.2.2.6-alpha-1","0.2.2.7-alpha-1","0.2.2.7-alpha-2","0.2.2.8-alpha-1","0.2.2.9-alpha-1","0.2.3.10-alpha-1","0.2.3.11-alpha-1","0.2.3.11-alpha-2","0.2.3.12-alpha-1","0.2.3.13-alpha-1","0.2.3.14-alpha-1","0.2.3.15-alpha-1","0.2.3.16-alpha-1","0.2.3.17-beta-1","0.2.3.17-beta-2","0.2.3.17-beta-3","0.2.3.18-rc-1","0.2.3.19-rc-1","0.2.3.20-rc-1","0.2.3.21-rc-1","0.2.3.22-rc-1","0.2.3.23-rc-1","0.2.3.24-rc-1","0.2.3.25-1","0.2.3.3-alpha-1","0.2.3.4-alpha-1","0.2.3.5-alpha-1","0.2.3.6-alpha-1","0.2.3.7-alpha-1","0.2.3.8-alpha-1","0.2.3.9-alpha-1","0.2.4.1-alpha-1","0.2.4.10-alpha-1","0.2.4.11-alpha-1","0.2.4.12-alpha-1","0.2.4.12-alpha-2","0.2.4.13-alpha-1","0.2.4.14-alpha-1","0.2.4.15-rc-1","0.2.4.16-rc-1","0.2.4.17-rc-1","0.2.4.18-rc-1","0.2.4.19-1","0.2.4.2-alpha-1","0.2.4.20-1","0.2.4.21-1","0.2.4.22-1","0.2.4.22-1~bpo70+1","0.2.4.22-1~deb7u1","0.2.4.23-1","0.2.4.23-1~deb6u1","0.2.4.23-1~deb7u1","0.2.4.24-1","0.2.4.26-1","0.2.4.26-1~deb6u1","0.2.4.3-alpha-1","0.2.4.4-alpha-1","0.2.4.5-alpha-1","0.2.4.6-alpha-1","0.2.4.7-alpha-1","0.2.4.9-alpha-1"],"bundled":2},{"source":"osv","ecosystem":"Debian:7","package":"tor","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.2.4.27-1"}]}],"versions":["0.2.3.25-1","0.2.4.1-alpha-1","0.2.4.10-alpha-1","0.2.4.11-alpha-1","0.2.4.12-alpha-1","0.2.4.12-alpha-2","0.2.4.13-alpha-1","0.2.4.14-alpha-1","0.2.4.15-rc-1","0.2.4.16-rc-1","0.2.4.17-rc-1","0.2.4.18-rc-1","0.2.4.19-1","0.2.4.2-alpha-1","0.2.4.20-1","0.2.4.21-1","0.2.4.22-1","0.2.4.22-1~bpo70+1","0.2.4.22-1~deb7u1","0.2.4.23-1","0.2.4.23-1~deb6u1","0.2.4.23-1~deb7u1","0.2.4.24-1","0.2.4.26-1","0.2.4.26-1~deb6u1","0.2.4.27-1~deb6u1","0.2.4.3-alpha-1","0.2.4.4-alpha-1","0.2.4.5-alpha-1","0.2.4.6-alpha-1","0.2.4.7-alpha-1","0.2.4.9-alpha-1"],"bundled":2},{"source":"osv","ecosystem":"Mageia:4","package":"tor","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.2.4.27-1.mga4"}]}],"bundled":2},{"source":"osv","ecosystem":"Ubuntu:14.04:LTS","package":"tor","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.2.4.27-1build0.14.04.1"}]}],"versions":["0.2.3.25-1","0.2.4.19-1","0.2.4.20-1"]},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"tor","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.2.8.11-1.1"}]}],"bundled":22}],"products":[{"vendor":"the tor project","product":"tor"},{"vendor":"torproject","product":"tor"}],"references":[{"url":"https://trac.torproject.org/projects/tor/ticket/15600","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory","report"]},{"url":"http://openwall.com/lists/oss-security/2015/04/06/5","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Third Party Advisory","advisory","article"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2015-2928"},{"url":"https://github.com/advisories/GHSA-f48h-2gff-477g"},{"url":"https://security-tracker.debian.org/tracker/CVE-2015-2928","tags":["advisory"]},{"url":"https://advisories.mageia.org/MGASA-2015-0151.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=15639","tags":["report"]},{"url":"https://blog.torproject.org/blog/tor-02512-and-0267-are-released","tags":["web"]},{"url":"https://www.debian.org/security/2015/dsa-3216","tags":["web"]},{"url":"https://ubuntu.com/security/CVE-2015-2928","tags":["report"]},{"url":"http://www.openwall.com/lists/oss-security/2015/04/06/5","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2015-2928","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2011-0427","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2011-2768","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2011-2769","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2011-2778","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2011-4576","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2011-4894","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2011-4895","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2011-4896","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2011-4897","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2012-3517","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2012-3518","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2012-3519","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2012-4419","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2012-4922","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2012-5573","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2013-7295","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-0160","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-5117","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-2688","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-2689","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-2928","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-2929","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2015-2928","description":"The Hidden Service (HS) server implementation in Tor before 0.2.4.27, 0.2.5.x before 0.2.5.12, and 0.2.6.x before 0.2.6.7 allows remote attackers to cause a denial of service (assertion failure and daemon exit) via unspecified vectors.","status":"published","published":"2020-01-24T17:22:15Z","modified":"2024-08-06T05:32:20.595Z","updated_at":"2026-11-02T14:35:41.976732Z"}],"euvd":[{"id":"EUVD-2015-3013","description":"The Hidden Service (HS) server implementation in Tor before 0.2.4.27, 0.2.5.x before 0.2.5.12, and 0.2.6.x before 0.2.6.7 allows remote attackers to cause a denial of service (assertion failure and daemon exit) via unspecified vectors.","status":"published","published":"2020-01-24T17:22:15Z","modified":"2024-08-06T05:32:20Z","updated_at":"2026-11-03T02:22:10.045369Z"}],"ghsa":[{"id":"GHSA-f48h-2gff-477g","title":"The Hidden Service (HS) server implementation in Tor before 0.2.4.27, 0.2.5.x before 0.2.5.12,...","description":"The Hidden Service (HS) server implementation in Tor before 0.2.4.27, 0.2.5.x before 0.2.5.12, and 0.2.6.x before 0.2.6.7 allows remote attackers to cause a denial of service (assertion failure and daemon exit) via unspecified vectors.","status":"published","published":"2022-05-24T17:07:16Z","modified":"2023-01-29T05:01:21Z","updated_at":"2026-11-02T14:44:47.932364Z"}],"nvd":[{"id":"CVE-2015-2928","description":"The Hidden Service (HS) server implementation in Tor before 0.2.4.27, 0.2.5.x before 0.2.5.12, and 0.2.6.x before 0.2.6.7 allows remote attackers to cause a denial of service (assertion failure and daemon exit) via unspecified vectors.","status":"published","published":"2020-01-24T18:15:12.367Z","modified":"2026-06-17T00:24:59.103Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/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"}],"updated_at":"2026-11-02T14:03:19.73542Z"}],"osv":[{"id":"CVE-2015-2928","description":"The Hidden Service (HS) server implementation in Tor before 0.2.4.27, 0.2.5.x before 0.2.5.12, and 0.2.6.x before 0.2.6.7 allows remote attackers to cause a denial of service (assertion failure and daemon exit) via unspecified vectors.","status":"published","published":"2020-01-24T18:15:12Z","modified":"2026-04-16T06:21:24.934972102Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:00.594921Z"},{"id":"DEBIAN-CVE-2015-2928","description":"The Hidden Service (HS) server implementation in Tor before 0.2.4.27, 0.2.5.x before 0.2.5.12, and 0.2.6.x before 0.2.6.7 allows remote attackers to cause a denial of service (assertion failure and daemon exit) via unspecified vectors.","status":"published","published":"2020-01-24T18:15:12.367Z","modified":"2026-09-09T07:00:32.056877657Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:26.752992Z"},{"id":"UBUNTU-CVE-2015-2928","description":"The Hidden Service (HS) server implementation in Tor before 0.2.4.27, 0.2.5.x before 0.2.5.12, and 0.2.6.x before 0.2.6.7 allows remote attackers to cause a denial of service (assertion failure and daemon exit) via unspecified vectors.","status":"published","published":"2020-01-24T18:15:00Z","modified":"2025-09-08T16:43:21Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:54:10.045446Z"},{"id":"DLA-187-1","title":"tor - security update","status":"published","published":"2015-04-06T00:00:00Z","modified":"2026-03-09T01:18:43.535748Z","updated_at":"2026-11-02T15:46:09.777694Z"},{"id":"DSA-3216-1","title":"tor - security update","status":"published","published":"2015-04-06T00:00:00Z","modified":"2026-03-09T01:23:12.718477Z","updated_at":"2026-11-02T15:46:15.843838Z"},{"id":"MGASA-2015-0151","title":"Updated tor packages fix security vulnerabilities","description":"\"disgleirio\" discovered that a malicious client could trigger an assertion\nfailure in a Tor instance providing a hidden service, thus rendering the\nservice inaccessible (CVE-2015-2928).\n\n\"DonnchaC\" discovered that Tor clients would crash with an assertion failure\nupon parsing specially crafted hidden service descriptors (CVE-2015-2929).\n\nIntroduction points would accept multiple INTRODUCE1 cells on one circuit,\nmaking it inexpensive for an attacker to overload a hidden service with\nintroductions. Introduction points now no longer allow multiple cells of\nthat type on the same circuit.\n\nThe tor package has been updated to version 0.2.4.27, fixing these issues.\n","status":"published","published":"2015-04-15T09:01:28Z","modified":"2026-04-16T06:23:26.625571333Z","updated_at":"2026-11-02T15:49:39.488462Z"},{"id":"openSUSE-SU-2024:10423-1","title":"tor-0.2.8.11-1.1 on GA media","description":"These are all security issues fixed in the tor-0.2.8.11-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T04:22:58.106216Z","updated_at":"2026-11-02T16:58:34.487567Z"}]}}