{"id":"CVE-2016-4456","aliases":["DEBIAN-CVE-2016-4456","EUVD-2016-5445","GHSA-f425-wv72-9hrq"],"status":"published","title":"The \"GNUTLS_KEYLOGFILE\" environment variable in gnutls 3.4.12 allows remote attackers to...","description":"The \"GNUTLS_KEYLOGFILE\" environment variable in gnutls 3.4.12 allows remote attackers to overwrite and corrupt arbitrary files in the filesystem.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.022,"percentile":0.82632,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-20"],"published":"2017-08-08T21:00:00Z","modified":"2026-10-24T10:30:48Z","fixes":[{"ecosystem":"Debian:12","package":"gnutls28","fixed_in":["3.4.13-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"gnutls28","fixed_in":["3.4.13-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"gnutls28","fixed_in":["3.4.13-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"gnutls28","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.4.13-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"gnutls28","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.4.13-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"gnutls28","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.4.13-1"}]}]}],"products":[{"vendor":"gnu","product":"gnutls"}],"references":[{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1343505","tags":["x_refsource_CONFIRM","x_transferred","Issue Tracking","Third Party Advisory","report"]},{"url":"http://www.openwall.com/lists/oss-security/2016/06/07/6","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-4456"},{"url":"https://github.com/advisories/GHSA-f425-wv72-9hrq"},{"url":"https://security-tracker.debian.org/tracker/CVE-2016-4456","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2016-4456","description":"The \"GNUTLS_KEYLOGFILE\" environment variable in gnutls 3.4.12 allows remote attackers to overwrite and corrupt arbitrary files in the filesystem.","status":"published","published":"2017-08-08T21:00:00Z","modified":"2024-08-06T00:32:25.569Z","updated_at":"2026-11-02T14:33:35.488991Z"}],"euvd":[{"id":"EUVD-2016-5445","description":"The \"GNUTLS_KEYLOGFILE\" environment variable in gnutls 3.4.12 allows remote attackers to overwrite and corrupt arbitrary files in the filesystem.","status":"published","published":"2017-08-08T21:00:00Z","modified":"2024-08-06T00:32:25Z","updated_at":"2026-11-03T02:22:46.329763Z"}],"ghsa":[{"id":"GHSA-f425-wv72-9hrq","title":"The \"GNUTLS_KEYLOGFILE\" environment variable in gnutls 3.4.12 allows remote attackers to...","description":"The \"GNUTLS_KEYLOGFILE\" environment variable in gnutls 3.4.12 allows remote attackers to overwrite and corrupt arbitrary files in the filesystem.","status":"published","published":"2022-05-13T01:25:46Z","modified":"2023-02-01T05:07:39Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:50:35.110336Z"}],"nvd":[{"id":"CVE-2016-4456","description":"The \"GNUTLS_KEYLOGFILE\" environment variable in gnutls 3.4.12 allows remote attackers to overwrite and corrupt arbitrary files in the filesystem.","status":"published","published":"2017-08-08T21:29:00.407Z","modified":"2026-06-17T00:47:35.623Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:03:39.176887Z"}],"osv":[{"id":"CVE-2016-4456","description":"The \"GNUTLS_KEYLOGFILE\" environment variable in gnutls 3.4.12 allows remote attackers to overwrite and corrupt arbitrary files in the filesystem.","status":"published","published":"2017-08-08T21:29:00.407Z","modified":"2026-10-24T10:30:48.054963618Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T15:44:02.454775Z"},{"id":"DEBIAN-CVE-2016-4456","description":"The \"GNUTLS_KEYLOGFILE\" environment variable in gnutls 3.4.12 allows remote attackers to overwrite and corrupt arbitrary files in the filesystem.","status":"published","published":"2017-08-08T21:29:00.407Z","modified":"2026-09-22T07:00:49.02573876Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T15:45:27.627285Z"}]}}