{"id":"CVE-2016-2550","url":"https://www.cyber-defence.io/tools/cve/CVE-2016-2550","generatedAt":"2026-10-27T17:57:48.475Z","title":"The Linux kernel before 4.5 allows local users to bypass file-descriptor limits and cause a denial of service (memory consumption) by leveraging incorrect tracking of descriptor ownership and sending each descriptor over a UNIX socket before closing it.","description":"The Linux kernel before 4.5 allows local users to bypass file-descriptor limits and cause a denial of service (memory consumption) by leveraging incorrect tracking of descriptor ownership and sending each descriptor over a UNIX socket before closing it. NOTE: this vulnerability exists because of an incorrect fix for CVE-2013-4312.","published":"2016-04-27T17:59:20.000Z","lastModified":"2026-06-17T00:44:17.000Z","status":"Modified","sourceIdentifier":"security@debian.org","cvss":{"version":"3.0","score":5.5,"severity":"MEDIUM","vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-399"],"affected":["linux/linux kernel"],"epss":{"score":0.00507,"percentile":0.42984,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.51%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=415e3d3e90ce9e18727e8843ae343eda5a58fad6","tags":["Vendor Advisory"],"source":"security@debian.org"},{"url":"http://www.debian.org/security/2016/dsa-3503","source":"security@debian.org"},{"url":"http://www.openwall.com/lists/oss-security/2016/02/23/2","source":"security@debian.org"},{"url":"http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html","source":"security@debian.org"},{"url":"http://www.ubuntu.com/usn/USN-2946-1","source":"security@debian.org"},{"url":"http://www.ubuntu.com/usn/USN-2946-2","source":"security@debian.org"},{"url":"http://www.ubuntu.com/usn/USN-2947-1","source":"security@debian.org"},{"url":"http://www.ubuntu.com/usn/USN-2947-2","source":"security@debian.org"},{"url":"http://www.ubuntu.com/usn/USN-2947-3","source":"security@debian.org"},{"url":"http://www.ubuntu.com/usn/USN-2948-1","source":"security@debian.org"},{"url":"http://www.ubuntu.com/usn/USN-2948-2","source":"security@debian.org"},{"url":"http://www.ubuntu.com/usn/USN-2949-1","source":"security@debian.org"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1311517","source":"security@debian.org"},{"url":"https://github.com/torvalds/linux/commit/415e3d3e90ce9e18727e8843ae343eda5a58fad6","tags":["Patch","Vendor Advisory"],"source":"security@debian.org"},{"url":"http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=415e3d3e90ce9e18727e8843ae343eda5a58fad6","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.debian.org/security/2016/dsa-3503","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2016/02/23/2","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-2946-1","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-2946-2","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-2947-1","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-2947-2","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-2947-3","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-2948-1","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-2948-2","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-2949-1","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1311517","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/torvalds/linux/commit/415e3d3e90ce9e18727e8843ae343eda5a58fad6","tags":["Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2016-2550","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}