{"id":"CVE-2016-6252","aliases":["ALPINE-CVE-2016-6252","BELL-CVE-2016-6252","DEBIAN-CVE-2016-6252","DSA-3793-1","EUVD-2016-7182","GHSA-8rg4-9fq3-cf7g","MGASA-2017-0024","SUSE-SU-2018:1995-1","SUSE-SU-2018:1997-1","SUSE-SU-2018:1997-2","UBUNTU-CVE-2016-6252","USN-3276-1"],"status":"published","title":"Integer overflow in shadow 4.2.1 allows local users to gain privileges via crafted input to...","description":"Integer overflow in shadow 4.2.1 allows local users to gain privileges via crafted input to 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List","Third Party Advisory","advisory"]},{"url":"http://www.securityfocus.com/bid/92055","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry","advisory"]},{"url":"https://security.gentoo.org/glsa/201706-02","tags":["vendor-advisory","x_refsource_GENTOO","x_transferred","advisory"]},{"url":"https://github.com/shadow-maint/shadow/issues/27","tags":["x_refsource_CONFIRM","x_transferred","Issue Tracking","Patch","Third Party Advisory","fix"]},{"url":"https://bugzilla.suse.com/show_bug.cgi?id=979282","tags":["x_refsource_CONFIRM","x_transferred","Issue Tracking","Patch","fix"]},{"url":"http://www.openwall.com/lists/oss-security/2016/07/25/7","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Patch","Third Party Advisory","fix"]},{"url":"http://www.openwall.com/lists/oss-security/2016/07/19/6","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Third Party Advisory","advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2016/07/20/2","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Third Party Advisory","advisory"]},{"url":"http://www.debian.org/security/2017/dsa-3793","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-6252"},{"url":"https://github.com/advisories/GHSA-8rg4-9fq3-cf7g"},{"url":"https://security.alpinelinux.org/vuln/CVE-2016-6252","tags":["advisory"]},{"url":"https://docs.bell-sw.com/security/cves/CVE-2016-6252","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2016-6252","tags":["advisory"]},{"url":"https://advisories.mageia.org/MGASA-2017-0024.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=18984","tags":["report"]},{"url":"http://openwall.com/lists/oss-security/2016/07/20/2","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2018/suse-su-20181995-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1099310","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2016-6252","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2018/suse-su-20181997-1/","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2018/suse-su-20181997-2/","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2016-6252","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-3276-1","tags":["advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2016-6252","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2017-2616","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2016-6252","description":"Integer overflow in shadow 4.2.1 allows local users to gain privileges via crafted input to newuidmap.","status":"published","published":"2017-02-17T17:00:00Z","modified":"2024-08-06T01:22:20.732Z","updated_at":"2026-11-02T14:33:34.443637Z"}],"euvd":[{"id":"EUVD-2016-7182","description":"Integer overflow in shadow 4.2.1 allows local users to gain privileges via crafted input to newuidmap.","status":"published","published":"2017-02-17T17:00:00Z","modified":"2024-08-06T01:22:20Z","updated_at":"2026-11-03T02:22:39.91691Z"}],"ghsa":[{"id":"GHSA-8rg4-9fq3-cf7g","title":"Integer overflow in shadow 4.2.1 allows local users to gain privileges via crafted input to...","description":"Integer overflow in shadow 4.2.1 allows local users to gain privileges via crafted input to newuidmap.","status":"published","published":"2022-05-17T00:27:23Z","modified":"2023-02-03T05:01:41Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-190"],"updated_at":"2026-11-02T14:53:01.625617Z"}],"nvd":[{"id":"CVE-2016-6252","description":"Integer overflow in shadow 4.2.1 allows local users to gain privileges via crafted input to newuidmap.","status":"published","published":"2017-02-17T17:59:00.937Z","modified":"2026-06-17T00:50:41.8Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":4.6,"vector":"AV:L/AC:L/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-190"],"updated_at":"2026-11-02T14:03:35.822579Z"}],"osv":[{"id":"ALPINE-CVE-2016-6252","description":"Integer overflow in shadow 4.2.1 allows local users to gain privileges via crafted input to newuidmap.","status":"published","published":"2017-02-17T17:59:00.937Z","modified":"2026-11-03T06:30:05.319919035Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-03T06:41:39.834803Z"},{"id":"BELL-CVE-2016-6252","title":"CVE-2016-6252 does not affect BellSoft software","status":"withdrawn","published":"2023-08-31T12:15:56.960954Z","modified":"2026-01-26T09:46:24.910541Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:28:14.137943Z"},{"id":"CVE-2016-6252","description":"Integer overflow in shadow 4.2.1 allows local users to gain privileges via crafted input to newuidmap.","status":"published","published":"2017-02-17T17:59:00.937Z","modified":"2026-10-20T10:47:39.812317837Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:02.776224Z"},{"id":"DEBIAN-CVE-2016-6252","description":"Integer overflow in shadow 4.2.1 allows local users to gain privileges via crafted input to newuidmap.","status":"published","published":"2017-02-17T17:59:00.937Z","modified":"2026-09-22T07:02:03.712402861Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:27.910042Z"},{"id":"UBUNTU-CVE-2016-6252","description":"Integer overflow in shadow 4.2.1 allows local users to gain privileges via crafted input to newuidmap.","status":"published","published":"2017-02-17T00:00:00Z","modified":"2026-02-04T03:04:18.41866Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:54:12.642042Z"},{"id":"DSA-3793-1","title":"shadow - security update","status":"published","published":"2017-02-24T00:00:00Z","modified":"2026-03-09T01:22:30.170394Z","updated_at":"2026-11-02T15:46:16.523846Z"},{"id":"MGASA-2017-0024","title":"Updated shadow-utils packages fix security vulnerabilities","description":"It was found that shadow-utils-4.2.1 had a potentially unsafe use of\ngetlogin with the concern that the utmp entry might have a spoofed\nusername associated with a correct uid (CVE-2016-6251).\n\nIt was found that shadow-utils-4.2.1 had an incorrect integer handling\nproblem where it looks like the int wrap is exploitable as a LPE, as the\nkernel is using 32bit uid's that are truncated from unsigned longs\n(64bit on x64) as returned by simple_strtoul() [map_write()].\n(CVE-2016-6252).\n","status":"published","published":"2017-01-27T20:30:52Z","modified":"2026-04-16T06:24:53.843658086Z","updated_at":"2026-11-02T15:49:40.103088Z"},{"id":"SUSE-SU-2018:1995-1","title":"Security update for shadow","description":"This update for shadow fixes the following issues:\n\n- CVE-2016-6252: Fixed incorrect integer handling that could results in a local privilege escalation (bsc#1099310)\n","status":"published","published":"2018-07-19T07:54:09Z","modified":"2026-02-04T04:21:48.988592Z","updated_at":"2026-11-02T15:53:44.972817Z"},{"id":"SUSE-SU-2018:1997-1","title":"Security update for shadow","description":"This update for shadow fixes the following issues:\n\n- CVE-2016-6252: Incorrect integer handling could results in local privilege escalation (bsc#1099310)\n","status":"published","published":"2018-07-19T07:43:31Z","modified":"2026-02-04T02:34:28.643869Z","updated_at":"2026-11-02T15:53:44.972817Z"},{"id":"SUSE-SU-2018:1997-2","title":"Security update for shadow","description":"This update for shadow fixes the following issues:\n\n- CVE-2016-6252: Incorrect integer handling could results in local privilege escalation (bsc#1099310)\n","status":"published","published":"2018-10-18T12:48:13Z","modified":"2026-02-04T03:14:55.108648Z","updated_at":"2026-11-02T15:53:44.972817Z"},{"id":"USN-3276-1","title":"shadow vulnerabilities","description":"Sebastian Krahmer discovered integer overflows in shadow utilities.\nA local attacker could possibly cause them to crash or potentially\ngain privileges via crafted input. (CVE-2016-6252)\n\nTobias Stöckmann discovered a race condition in su. A local\nattacker could cause su to send SIGKILL to other processes with\nroot privileges. (CVE-2017-2616)\n","status":"published","published":"2017-05-05T07:12:28Z","modified":"2026-02-10T04:41:07Z","updated_at":"2026-11-02T16:58:13.496563Z"}]}}