{"id":"CVE-2017-6802","aliases":["DEBIAN-CVE-2017-6802","DLA-878-1","DSA-3846-1","EUVD-2017-15856","GHSA-hm69-vmvv-v8qp","MGASA-2017-0174","UBUNTU-CVE-2017-6802","USN-3288-1","USN-4615-1"],"status":"published","title":"An issue was discovered in ytnef before 1.9.2. There is a potential heap-based buffer over-read...","description":"An issue was discovered in ytnef before 1.9.2. There is a potential heap-based buffer over-read on incoming Compressed RTF Streams, related to DecompressRTF() in libytnef.","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":"2026-11-07","score":0.01419,"percentile":0.72959,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-125"],"published":"2017-03-10T00:00:00Z","modified":"2026-10-20T13:24:22Z","fixes":[{"ecosystem":"Debian:12","package":"libytnef","fixed_in":["1.9.2-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"libytnef","fixed_in":["1.9.2-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"libytnef","fixed_in":["1.9.2-1"],"sources":["osv"]},{"ecosystem":"Ubuntu:14.04:LTS","package":"libytnef","fixed_in":["1.5-6ubuntu0.1"],"sources":["osv"]},{"ecosystem":"Ubuntu:16.04:LTS","package":"libytnef","fixed_in":["1.5-9ubuntu0.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"libytnef","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.9.2-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"libytnef","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.9.2-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"libytnef","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.9.2-1"}]}]},{"source":"osv","ecosystem":"Debian:7","package":"libytnef","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.5-4+deb7u1"}]}],"versions":["1.5-4"],"bundled":10},{"source":"osv","ecosystem":"Debian:8","package":"libytnef","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.5-6+deb8u1"}]}],"versions":["1.5-6"],"bundled":12},{"source":"osv","ecosystem":"Mageia:5","package":"libytnef","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.5-10.2.mga5"}]}],"bundled":13},{"source":"osv","ecosystem":"Ubuntu:14.04:LTS","package":"libytnef","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.5-6ubuntu0.1"}]}],"versions":["1.5-5","1.5-6"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"libytnef","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.5-9ubuntu0.1"}]}],"versions":["1.5-6","1.5-9"]},{"source":"osv","ecosystem":"Ubuntu:14.04:LTS","package":"libytnef","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.5-6ubuntu0.1"}]}],"versions":["1.5-5","1.5-6"],"bundled":12},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"libytnef","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.5-9ubuntu0.1"}]}],"versions":["1.5-6","1.5-9"],"bundled":12}],"products":[{"vendor":"debian","product":"debian_linux"},{"vendor":"ytnef_project","product":"ytnef"}],"references":[{"url":"http://www.debian.org/security/2017/dsa-3846","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred","Third Party Advisory","advisory"]},{"url":"https://github.com/Yeraze/ytnef/issues/34","tags":["x_refsource_CONFIRM","x_transferred","Issue Tracking","Patch","fix","report"]},{"url":"https://github.com/Yeraze/ytnef/commit/22f8346c8d4f0020a40d9f258fdb3bfc097359cc","tags":["x_refsource_CONFIRM","x_transferred","Patch","fix","report"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LFJWMUEUC4ILH2HEOCYVVLQT654ZMCGQ/","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2017-6802"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LFJWMUEUC4ILH2HEOCYVVLQT654ZMCGQ"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LFJWMUEUC4ILH2HEOCYVVLQT654ZMCGQ"},{"url":"https://github.com/advisories/GHSA-hm69-vmvv-v8qp"},{"url":"https://security-tracker.debian.org/tracker/CVE-2017-6802","tags":["advisory"]},{"url":"https://advisories.mageia.org/MGASA-2017-0174.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=20893","tags":["report"]},{"url":"http://openwall.com/lists/oss-security/2017/02/15/4","tags":["web"]},{"url":"https://www.debian.org/security/2017/dsa-3846","tags":["web"]},{"url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=862556","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2017-6802","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-3288-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/notices/USN-4615-1","tags":["advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2017-6802","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2017-6298","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2017-6299","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2017-6300","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2017-6301","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2017-6302","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2017-6303","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2017-6304","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2017-6305","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2017-6306","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2017-6800","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2017-6801","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2017-6802","description":"An issue was discovered in ytnef before 1.9.2. There is a potential heap-based buffer over-read on incoming Compressed RTF Streams, related to DecompressRTF() in libytnef.","status":"published","published":"2017-03-10T10:29:00Z","modified":"2024-08-05T15:41:17.549Z","updated_at":"2026-11-02T14:33:16.916541Z"}],"euvd":[{"id":"EUVD-2017-15856","description":"An issue was discovered in ytnef before 1.9.2. There is a potential heap-based buffer over-read on incoming Compressed RTF Streams, related to DecompressRTF() in libytnef.","status":"published","published":"2017-03-10T10:29:00Z","modified":"2024-08-05T15:41:17Z","updated_at":"2026-11-03T02:39:11.032877Z"}],"ghsa":[{"id":"GHSA-hm69-vmvv-v8qp","title":"An issue was discovered in ytnef before 1.9.2. There is a potential heap-based buffer over-read...","description":"An issue was discovered in ytnef before 1.9.2. There is a potential heap-based buffer over-read on incoming Compressed RTF Streams, related to DecompressRTF() in libytnef.","status":"published","published":"2022-05-14T01:01:12Z","modified":"2025-04-20T03:34:58Z","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-125"],"updated_at":"2026-11-02T15:01:42.453698Z"}],"nvd":[{"id":"CVE-2017-6802","description":"An issue was discovered in ytnef before 1.9.2. There is a potential heap-based buffer over-read on incoming Compressed RTF Streams, related to DecompressRTF() in libytnef.","status":"published","published":"2017-03-10T10:59:00.577Z","modified":"2026-06-17T01:23:07.9Z","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-125"],"updated_at":"2026-11-02T14:03:43.325192Z"}],"osv":[{"id":"CVE-2017-6802","description":"An issue was discovered in ytnef before 1.9.2. There is a potential heap-based buffer over-read on incoming Compressed RTF Streams, related to DecompressRTF() in libytnef.","status":"published","published":"2017-03-10T10:59:00.577Z","modified":"2026-10-20T13:24:22.29599135Z","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":"2026-11-02T15:44:06.412595Z"},{"id":"DEBIAN-CVE-2017-6802","description":"An issue was discovered in ytnef before 1.9.2. There is a potential heap-based buffer over-read on incoming Compressed RTF Streams, related to DecompressRTF() in libytnef.","status":"published","published":"2017-03-10T10:59:00.577Z","modified":"2026-09-01T20:03:49.418802689Z","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":"2026-11-02T15:45:29.412243Z"},{"id":"UBUNTU-CVE-2017-6802","description":"An issue was discovered in ytnef before 1.9.2. There is a potential heap-based buffer over-read on incoming Compressed RTF Streams, related to DecompressRTF() in libytnef.","status":"published","published":"2017-03-10T00:00:00Z","modified":"2026-04-22T11:30:08.050258Z","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":"2026-11-02T15:54:15.773974Z"},{"id":"DLA-878-1","title":"libytnef - security update","status":"published","published":"2017-03-28T00:00:00Z","modified":"2026-03-09T02:11:20.72916Z","updated_at":"2026-11-02T15:46:13.584509Z"},{"id":"DSA-3846-1","title":"libytnef - security update","status":"published","published":"2017-05-09T00:00:00Z","modified":"2026-03-09T01:21:10.700263Z","updated_at":"2026-11-02T15:46:16.523846Z"},{"id":"MGASA-2017-0174","title":"Updated libytnef packages fix security vulnerabilities","description":"Several issues were discovered in libytnef, a library used to decode\napplication/ms-tnef e-mail attachments. Multiple heap overflows,\nout-of-bound writes and reads, NULL pointer dereferences and infinite\nloops could be exploited by tricking a user into opening a maliciously\ncrafted winmail.dat file (CVE-2017-6298, CVE-2017-6299, CVE-2017-6300,\nCVE-2017-6301, CVE-2017-6302, CVE-2017-6303, CVE-2017-6304,\nCVE-2017-6305, CVE-2017-6306, CVE-2017-6800, CVE-2017-6801,\nCVE-2017-6802).\n\nA heap-buffer-overflow vulnerability in libytnef due to an incorrect\nboundary checking in SIZECHCK macro in lib/ytnef.c (CVE-2017-9058).\n","status":"published","published":"2017-06-14T15:52:21Z","modified":"2026-04-16T06:26:12.282736923Z","updated_at":"2026-11-02T15:49:40.103088Z"},{"id":"USN-3288-1","title":"libytnef vulnerabilities","description":"It was discovered that libytnef incorrectly handled malformed TNEF streams.\nIf a user were tricked into opening a specially crafted TNEF attachment, an\nattacker could cause a denial of service or possibly execute arbitrary\ncode.\n","status":"published","published":"2017-05-15T16:42:33Z","modified":"2026-04-22T09:34:44.605081Z","updated_at":"2026-11-02T16:58:13.496563Z"},{"id":"USN-4615-1","title":"libytnef vulnerabilities","description":"It was discovered that Yerase's TNEF had null pointer dereferences, infinite\nloop, buffer overflow, out of bounds reads, directory traversal issues and\nother vulnerabilities. An attacker could use those issues to cause a crash\nand consequently a denial of service. (CVE-2017-6298, CVE-2017-6299,\nCVE-2017-6300, CVE-2017-6301, CVE-2017-6302, CVE-2017-6303, CVE-2017-6304,\nCVE-2017-6305, CVE-2017-6306, CVE-2017-6800, CVE-2017-6801, CVE-2017-6802)\n","status":"published","published":"2020-11-03T16:12:24Z","modified":"2026-04-22T10:09:49.017733Z","updated_at":"2026-11-02T16:58:15.159055Z"}]}}