{"id":"CVE-2017-8911","aliases":["DEBIAN-CVE-2017-8911","DLA-962-1","DSA-3869-1","EUVD-2017-17851","GHSA-575j-8r4j-2fmq","MGASA-2017-0209","UBUNTU-CVE-2017-8911","openSUSE-SU-2024:11467-1"],"status":"published","title":"An integer underflow has been identified in the unicode_to_utf8() function in tnef 1.4.14. This...","description":"An integer underflow has been identified in the unicode_to_utf8() function in tnef 1.4.14. This might lead to invalid write operations, controlled by an attacker.","severity":{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.01934,"percentile":0.8017,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-191"],"published":"2017-05-12T06:54:00Z","modified":"2026-10-20T10:49:59Z","fixes":[{"ecosystem":"Debian:12","package":"tnef","fixed_in":["1.4.12-1.2"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"tnef","fixed_in":["1.4.12-1.2"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"tnef","fixed_in":["1.4.12-1.2"],"sources":["osv"]},{"ecosystem":"Debian:7","package":"tnef","fixed_in":["1.4.9-1+deb7u3"],"sources":["osv"]},{"ecosystem":"Debian:8","package":"tnef","fixed_in":["1.4.9-1+deb8u3"],"sources":["osv"]},{"ecosystem":"Mageia:5","package":"tnef","fixed_in":["1.4.15-1.mga5"],"sources":["osv"]},{"ecosystem":"Ubuntu:14.04:LTS","package":"tnef","fixed_in":["1.4.9-1+deb8u3build0.14.04.1"],"sources":["osv"]},{"ecosystem":"Ubuntu:16.04:LTS","package":"tnef","fixed_in":["1.4.9-1+deb8u3build0.16.04.1"],"sources":["osv"]},{"ecosystem":"openSUSE:Tumbleweed","package":"tnef","fixed_in":["1.4.18-1.6"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"tnef","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.12-1.2"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"tnef","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.12-1.2"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"tnef","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.12-1.2"}]}]},{"source":"osv","ecosystem":"Debian:7","package":"tnef","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.9-1+deb7u3"}]}],"versions":["1.4.9-1","1.4.9-1+deb7u1","1.4.9-1+deb7u2"]},{"source":"osv","ecosystem":"Debian:8","package":"tnef","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.9-1+deb8u3"}]}],"versions":["1.4.9-1","1.4.9-1+deb8u1","1.4.9-1+deb8u2"]},{"source":"osv","ecosystem":"Mageia:5","package":"tnef","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.15-1.mga5"}]}]},{"source":"osv","ecosystem":"Ubuntu:14.04:LTS","package":"tnef","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.9-1+deb8u3build0.14.04.1"}]}],"versions":["1.4.9-1","1.4.9-1+deb8u2build0.14.04.1"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"tnef","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.9-1+deb8u3build0.16.04.1"}]}],"versions":["1.4.9-1","1.4.9-1+deb8u2build0.16.04.1"]},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"tnef","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.18-1.6"}]}]}],"products":[{"vendor":"tnef_project","product":"tnef"}],"references":[{"url":"https://github.com/verdammelt/tnef/issues/23","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Patch","Third Party Advisory","fix"]},{"url":"http://www.debian.org/security/2017/dsa-3869","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred","advisory"]},{"url":"https://security.gentoo.org/glsa/201708-02","tags":["vendor-advisory","x_refsource_GENTOO","x_transferred","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2017-8911"},{"url":"https://github.com/advisories/GHSA-575j-8r4j-2fmq"},{"url":"https://security-tracker.debian.org/tracker/CVE-2017-8911","tags":["advisory"]},{"url":"https://advisories.mageia.org/MGASA-2017-0209.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=21013","tags":["report"]},{"url":"https://www.debian.org/security/2017/dsa-3869","tags":["web"]},{"url":"https://ubuntu.com/security/CVE-2017-8911","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2017-8911","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2017-8911","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2017-8911","description":"An integer underflow has been identified in the unicode_to_utf8() function in tnef 1.4.14. This might lead to invalid write operations, controlled by an attacker.","status":"published","published":"2017-05-12T06:54:00Z","modified":"2024-08-05T16:48:22.658Z","updated_at":"2026-11-02T14:33:14.89365Z"}],"euvd":[{"id":"EUVD-2017-17851","description":"An integer underflow has been identified in the unicode_to_utf8() function in tnef 1.4.14. This might lead to invalid write operations, controlled by an attacker.","status":"published","published":"2017-05-12T06:54:00Z","modified":"2024-08-05T16:48:22Z","updated_at":"2026-11-03T02:23:29.67797Z"}],"ghsa":[{"id":"GHSA-575j-8r4j-2fmq","title":"An integer underflow has been identified in the unicode_to_utf8() function in tnef 1.4.14. This...","description":"An integer underflow has been identified in the unicode_to_utf8() function in tnef 1.4.14. This might lead to invalid write operations, controlled by an attacker.","status":"published","published":"2022-05-17T00:26:31Z","modified":"2023-02-03T05:01:42Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-191"],"updated_at":"2026-11-02T14:53:01.625617Z"}],"nvd":[{"id":"CVE-2017-8911","description":"An integer underflow has been identified in the unicode_to_utf8() function in tnef 1.4.14. This might lead to invalid write operations, controlled by an attacker.","status":"published","published":"2017-05-12T07:29:00.313Z","modified":"2026-06-17T01:27:11.153Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-191"],"updated_at":"2026-11-02T14:03:47.848196Z"}],"osv":[{"id":"CVE-2017-8911","description":"An integer underflow has been identified in the unicode_to_utf8() function in tnef 1.4.14. This might lead to invalid write operations, controlled by an attacker.","status":"published","published":"2017-05-12T07:29:00.313Z","modified":"2026-10-20T10:49:59.260250397Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:44:06.868403Z"},{"id":"DEBIAN-CVE-2017-8911","description":"An integer underflow has been identified in the unicode_to_utf8() function in tnef 1.4.14. This might lead to invalid write operations, controlled by an attacker.","status":"published","published":"2017-05-12T07:29:00.313Z","modified":"2026-09-01T20:03:51.202908574Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:45:29.698576Z"},{"id":"UBUNTU-CVE-2017-8911","description":"An integer underflow has been identified in the unicode_to_utf8() function in tnef 1.4.14. This might lead to invalid write operations, controlled by an attacker.","status":"published","published":"2017-05-12T07:29:00Z","modified":"2025-09-08T16:44:15Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:54:16.154988Z"},{"id":"DLA-962-1","title":"tnef - security update","status":"published","published":"2017-05-29T00:00:00Z","modified":"2026-03-09T02:08:36.446891Z","updated_at":"2026-11-02T15:46:13.584509Z"},{"id":"DSA-3869-1","title":"tnef - security update","status":"published","published":"2017-06-01T00:00:00Z","modified":"2026-03-09T02:09:52.199469Z","updated_at":"2026-11-02T15:46:16.523846Z"},{"id":"MGASA-2017-0209","title":"Updated tnef packages fix security vulnerability","description":"It was discovered that tnef did not correctly validate its input. An\nattacker could exploit this by tricking a user into opening a malicious\nattachment, which would result in a denial-of-service by application\ncrash (CVE-2017-8911).\n","status":"published","published":"2017-07-22T08:42:57Z","modified":"2026-04-16T06:24:43.037740483Z","updated_at":"2026-11-02T15:49:40.103088Z"},{"id":"openSUSE-SU-2024:11467-1","title":"tnef-1.4.18-1.6 on GA media","description":"These are all security issues fixed in the tnef-1.4.18-1.6 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2025-05-07T18:09:49.494995Z","updated_at":"2026-11-02T16:58:35.195147Z"}]}}