{"id":"CVE-2013-2094","url":"https://www.cyber-defence.io/tools/cve/CVE-2013-2094","generatedAt":"2026-10-31T23:41:50.642Z","title":"Linux Kernel Privilege Escalation Vulnerability","description":"The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9 uses an incorrect integer data type, which allows local users to gain privileges via a crafted perf_event_open system call.","published":"2013-05-14T20:55:02.000Z","lastModified":"2026-06-16T23:52:44.000Z","status":"Analyzed","sourceIdentifier":"secalert@redhat.com","cvss":{"version":"3.1","score":8.4,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-189"],"affected":["linux/linux kernel"],"epss":{"score":0.47709,"percentile":0.98848,"date":"2026-10-30","history":[]},"kev":{"listed":true,"dateAdded":"2022-09-15","dueDate":"2022-10-06","knownRansomwareCampaignUse":"Unknown","notes":"Apply updates per vendor instructions.\nhttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8176cced706b5e5d15887584150764894e94e02f; https://nvd.nist.gov/vuln/detail/CVE-2013-2094"},"exploits":{"count":3,"verified":true,"firstPublished":"2013-05-14","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":33589,"kind":"exploit","title":"Linux Kernel 3.2.0-23/3.5.0-23 (Ubuntu 12.04/12.04.1/12.04.2 x64) - 'perf_swevent_init' Local Privilege Escalation (3)","url":"https://www.exploit-db.com/exploits/33589","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/linux_x86-64/local/33589.c","file":"exploits/linux_x86-64/local/33589.c","published":"2014-05-31","added":"2014-05-31","updated":"2018-03-19","author":"Vitaly Nikolenko","type":"local","platform":"linux_x86-64","port":null,"verified":true,"codes":["CVE-2013-2094","OSVDB-93361"],"tags":null,"aliases":"vnik;vnik.c","applicationUrl":null,"screenshotUrl":"http://www.exploit-db.com/screenshots/idlt34000/screen-shot-2014-07-08-at-105103-pm.png","referenceUrl":"http://cyseclabs.com/exploits/vnik_v1.c"},{"edbId":26131,"kind":"exploit","title":"Linux Kernel < 3.8.9 (x86-64) - 'perf_swevent_init' Local Privilege Escalation (2)","url":"https://www.exploit-db.com/exploits/26131","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/linux_x86-64/local/26131.c","file":"exploits/linux_x86-64/local/26131.c","published":"2013-06-11","added":"2013-06-11","updated":"2016-11-28","author":"Andrea Bittau","type":"local","platform":"linux_x86-64","port":null,"verified":true,"codes":["CVE-2013-2094","OSVDB-93361"],"tags":null,"aliases":"perf_swevent","applicationUrl":null,"screenshotUrl":null,"referenceUrl":null},{"edbId":25444,"kind":"exploit","title":"Linux Kernel 2.6.32 < 3.x (CentOS 5/6) - 'PERF_EVENTS' Local Privilege Escalation (1)","url":"https://www.exploit-db.com/exploits/25444","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/linux/local/25444.c","file":"exploits/linux/local/25444.c","published":"2013-05-14","added":"2013-05-14","updated":"2018-05-03","author":"sd","type":"local","platform":"linux","port":null,"verified":false,"codes":["CVE-2013-2094","OSVDB-93361"],"tags":null,"aliases":"semtex.c","applicationUrl":null,"screenshotUrl":null,"referenceUrl":null}]},"verdict":{"level":"urgent","text":"Known to be exploited in the wild (CISA KEV, CISA remediation deadline 6 October 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise."},"changes":[],"references":[{"url":"http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=8176cced706b5e5d15887584150764894e94e02f","tags":["Not Applicable"],"source":"secalert@redhat.com"},{"url":"http://lists.centos.org/pipermail/centos-announce/2013-May/019729.html","tags":["Third Party Advisory","VDB Entry"],"source":"secalert@redhat.com"},{"url":"http://lists.centos.org/pipermail/centos-announce/2013-May/019733.html","tags":["Third Party Advisory","VDB Entry"],"source":"secalert@redhat.com"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2013-05/msg00008.html","tags":["Third Party Advisory","VDB Entry"],"source":"secalert@redhat.com"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2013-05/msg00018.html","tags":["Third Party Advisory","VDB Entry"],"source":"secalert@redhat.com"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00005.html","tags":["Third Party Advisory","VDB Entry"],"source":"secalert@redhat.com"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00009.html","tags":["Third Party Advisory","VDB Entry"],"source":"secalert@redhat.com"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00017.html","tags":["Third Party Advisory","VDB Entry"],"source":"secalert@redhat.com"},{"url":"http://lkml.indiana.edu/hypermail/linux/kernel/1304.1/03652.html","tags":["Third Party Advisory","VDB Entry"],"source":"secalert@redhat.com"},{"url":"http://lkml.indiana.edu/hypermail/linux/kernel/1304.1/03976.html","tags":["Third Party Advisory","VDB Entry"],"source":"secalert@redhat.com"},{"url":"http://lkml.indiana.edu/hypermail/linux/kernel/1304.1/04302.html","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://news.ycombinator.com/item?id=5703758","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://packetstormsecurity.com/files/121616/semtex.c","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"secalert@redhat.com"},{"url":"http://rhn.redhat.com/errata/RHSA-2013-0830.html","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://twitter.com/djrbliss/statuses/334301992648331267","tags":["Patch"],"source":"secalert@redhat.com"},{"url":"http://www.exploit-db.com/exploits/33589","tags":["Third Party Advisory","VDB Entry"],"source":"secalert@redhat.com"},{"url":"http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.9","tags":["Not Applicable"],"source":"secalert@redhat.com"},{"url":"http://www.mandriva.com/security/advisories?name=MDVSA-2013:176","tags":["Mailing List","Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.openwall.com/lists/oss-security/2013/05/14/6","tags":["Mailing List","Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.osvdb.org/93361","tags":["Broken Link"],"source":"secalert@redhat.com"},{"url":"http://www.reddit.com/r/netsec/comments/1eb9iw","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.ubuntu.com/usn/USN-1825-1","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.ubuntu.com/usn/USN-1826-1","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.ubuntu.com/usn/USN-1827-1","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.ubuntu.com/usn/USN-1828-1","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.ubuntu.com/usn/USN-1836-1","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.ubuntu.com/usn/USN-1838-1","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=962792","tags":["Issue Tracking"],"source":"secalert@redhat.com"},{"url":"https://github.com/torvalds/linux/commit/8176cced706b5e5d15887584150764894e94e02f","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=8176cced706b5e5d15887584150764894e94e02f","tags":["Not Applicable"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.centos.org/pipermail/centos-announce/2013-May/019729.html","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.centos.org/pipermail/centos-announce/2013-May/019733.html","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2013-05/msg00008.html","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2013-05/msg00018.html","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00005.html","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00009.html","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00017.html","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lkml.indiana.edu/hypermail/linux/kernel/1304.1/03652.html","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lkml.indiana.edu/hypermail/linux/kernel/1304.1/03976.html","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lkml.indiana.edu/hypermail/linux/kernel/1304.1/04302.html","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://news.ycombinator.com/item?id=5703758","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://packetstormsecurity.com/files/121616/semtex.c","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://rhn.redhat.com/errata/RHSA-2013-0830.html","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://twitter.com/djrbliss/statuses/334301992648331267","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.exploit-db.com/exploits/33589","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.9","tags":["Not Applicable"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.mandriva.com/security/advisories?name=MDVSA-2013:176","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2013/05/14/6","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.osvdb.org/93361","tags":["Broken Link"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.reddit.com/r/netsec/comments/1eb9iw","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-1825-1","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-1826-1","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-1827-1","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-1828-1","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-1836-1","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-1838-1","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=962792","tags":["Issue Tracking"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/torvalds/linux/commit/8176cced706b5e5d15887584150764894e94e02f","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2013-2094","tags":["US Government Resource"],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2013-2094","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."}