CVE-2013-2094: Linux Kernel Privilege Escalation Vulnerability

Reference page built from the source records below, each shown as its source publishes it. Dataset version ref-cff52688e82b, updated 2026-11-02T23:39:54.475Z.

CISA Known Exploited Vulnerabilities

Name: Linux Kernel Privilege Escalation Vulnerability
Vendor: Linux
Product: Kernel
Added to the catalog: 2022-09-15
Due date for US federal agencies: 2022-10-06
Weaknesses: CWE-189
Catalog version: 2026.10.30

Linux kernel fails to check all 64 bits of attr.config passed by user space, resulting to out-of-bounds access of the perf_swevent_enabled array in sw_perf_event_destroy(). Explotation allows for privilege escalation.

Required action (CISA)

Apply updates per vendor instructions.

Ransomware use: CISA does not mark known use of this vulnerability in ransomware campaigns.

Links in CISA's notes

Read on 2026-11-02T23:39:54.475Z under licence cisa-kev-cc0@b0067899 from https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json

NVD analysis

Status: Analyzed
Published: 2013-05-14T20:55:01.527
Last modified: 2026-06-16T23:52:44.150
Weaknesses: CWE-189

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.

Metric	Score	Severity	Vector	Scored by
CVSS 3.1	8.4	HIGH	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)
CVSS 2.0	7.2	HIGH	AV:L/AC:L/Au:N/C:C/I:C/A:C	[email protected] (Primary)

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=8176cced706b5e5d15887584150764894e94e02f (Not Applicable)
http://lists.centos.org/pipermail/centos-announce/2013-May/019729.html (Third Party Advisory, VDB Entry)
http://lists.centos.org/pipermail/centos-announce/2013-May/019733.html (Third Party Advisory, VDB Entry)
http://lists.opensuse.org/opensuse-security-announce/2013-05/msg00008.html (Third Party Advisory, VDB Entry)
http://lists.opensuse.org/opensuse-security-announce/2013-05/msg00018.html (Third Party Advisory, VDB Entry)
http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00005.html (Third Party Advisory, VDB Entry)
http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00009.html (Third Party Advisory, VDB Entry)
http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00017.html (Third Party Advisory, VDB Entry)
http://lkml.indiana.edu/hypermail/linux/kernel/1304.1/03652.html (Third Party Advisory, VDB Entry)
http://lkml.indiana.edu/hypermail/linux/kernel/1304.1/03976.html (Third Party Advisory, VDB Entry)
http://lkml.indiana.edu/hypermail/linux/kernel/1304.1/04302.html (Third Party Advisory)
http://news.ycombinator.com/item?id=5703758 (Third Party Advisory)
http://packetstormsecurity.com/files/121616/semtex.c (Exploit, Third Party Advisory, VDB Entry)
http://rhn.redhat.com/errata/RHSA-2013-0830.html (Third Party Advisory)
http://twitter.com/djrbliss/statuses/334301992648331267 (Patch)
http://www.exploit-db.com/exploits/33589 (Third Party Advisory, VDB Entry)
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.9 (Not Applicable)
http://www.mandriva.com/security/advisories?name=MDVSA-2013:176 (Mailing List, Third Party Advisory)
http://www.openwall.com/lists/oss-security/2013/05/14/6 (Mailing List, Third Party Advisory)
http://www.osvdb.org/93361 (Broken Link)
http://www.reddit.com/r/netsec/comments/1eb9iw (Third Party Advisory)
http://www.ubuntu.com/usn/USN-1825-1 (Third Party Advisory)
http://www.ubuntu.com/usn/USN-1826-1 (Third Party Advisory)
http://www.ubuntu.com/usn/USN-1827-1 (Third Party Advisory)
http://www.ubuntu.com/usn/USN-1828-1 (Third Party Advisory)
http://www.ubuntu.com/usn/USN-1836-1 (Third Party Advisory)
http://www.ubuntu.com/usn/USN-1838-1 (Third Party Advisory)
https://bugzilla.redhat.com/show_bug.cgi?id=962792 (Issue Tracking)
https://github.com/torvalds/linux/commit/8176cced706b5e5d15887584150764894e94e02f (Third Party Advisory)
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=8176cced706b5e5d15887584150764894e94e02f (Not Applicable)
http://lists.centos.org/pipermail/centos-announce/2013-May/019729.html (Third Party Advisory, VDB Entry)
http://lists.centos.org/pipermail/centos-announce/2013-May/019733.html (Third Party Advisory, VDB Entry)
http://lists.opensuse.org/opensuse-security-announce/2013-05/msg00008.html (Third Party Advisory, VDB Entry)
http://lists.opensuse.org/opensuse-security-announce/2013-05/msg00018.html (Third Party Advisory, VDB Entry)
http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00005.html (Third Party Advisory, VDB Entry)
http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00009.html (Third Party Advisory, VDB Entry)
http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00017.html (Third Party Advisory, VDB Entry)
http://lkml.indiana.edu/hypermail/linux/kernel/1304.1/03652.html (Third Party Advisory, VDB Entry)
http://lkml.indiana.edu/hypermail/linux/kernel/1304.1/03976.html (Third Party Advisory, VDB Entry)
http://lkml.indiana.edu/hypermail/linux/kernel/1304.1/04302.html (Third Party Advisory)
http://news.ycombinator.com/item?id=5703758 (Third Party Advisory)
http://packetstormsecurity.com/files/121616/semtex.c (Exploit, Third Party Advisory, VDB Entry)
http://rhn.redhat.com/errata/RHSA-2013-0830.html (Third Party Advisory)
http://twitter.com/djrbliss/statuses/334301992648331267 (Patch)
http://www.exploit-db.com/exploits/33589 (Third Party Advisory, VDB Entry)
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.9 (Not Applicable)
http://www.mandriva.com/security/advisories?name=MDVSA-2013:176 (Mailing List, Third Party Advisory)
http://www.openwall.com/lists/oss-security/2013/05/14/6 (Mailing List, Third Party Advisory)
http://www.osvdb.org/93361 (Broken Link)
http://www.reddit.com/r/netsec/comments/1eb9iw (Third Party Advisory)
http://www.ubuntu.com/usn/USN-1825-1 (Third Party Advisory)
http://www.ubuntu.com/usn/USN-1826-1 (Third Party Advisory)
http://www.ubuntu.com/usn/USN-1827-1 (Third Party Advisory)
http://www.ubuntu.com/usn/USN-1828-1 (Third Party Advisory)
http://www.ubuntu.com/usn/USN-1836-1 (Third Party Advisory)
http://www.ubuntu.com/usn/USN-1838-1 (Third Party Advisory)
https://bugzilla.redhat.com/show_bug.cgi?id=962792 (Issue Tracking)
https://github.com/torvalds/linux/commit/8176cced706b5e5d15887584150764894e94e02f (Third Party Advisory)
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2013-2094 (US Government Resource)

This product uses the NVD API but is not endorsed or certified by the NVD.

Read on 2026-11-02T23:41:28.906Z under licence nvd-api-terms-of-use@ff2a5288 from https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2013-2094

CVE record

Assigner: redhat
State: PUBLISHED
Published: 2013-05-14T20:00:00.000Z
Updated: 2025-10-22T00:05:42.816Z
Problem types: n/a

References

openSUSE-SU-2013:0847
MDVSA-2013:176
[linux-kernel] 20130413 Re: sw_perf_event_destroy() oops while fuzzing
[linux-kernel] 20130412 sw_perf_event_destroy() oops while fuzzing
[CentOS-announce] 20130517 CESA-2013:0830 Important CentOS 6 kernel Update
USN-1826-1
[linux-kernel] 20130412 Re: sw_perf_event_destroy() oops while fuzzing
USN-1838-1
https://bugzilla.redhat.com/show_bug.cgi?id=962792
https://github.com/torvalds/linux/commit/8176cced706b5e5d15887584150764894e94e02f
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.9
USN-1828-1
[CentOS-announce] 20130515 CentOS-6 CVE-2013-2094 Kernel Issue
USN-1827-1
USN-1836-1
93361
33589
RHSA-2013:0830
http://news.ycombinator.com/item?id=5703758
[oss-security] 20130514 Re: CVE Request: linux kernel perf out-of-bounds access
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=8176cced706b5e5d15887584150764894e94e02f
SUSE-SU-2013:0819
http://packetstormsecurity.com/files/121616/semtex.c
openSUSE-SU-2013:0925
http://twitter.com/djrbliss/statuses/334301992648331267
http://www.reddit.com/r/netsec/comments/1eb9iw
openSUSE-SU-2013:1042
USN-1825-1
openSUSE-SU-2013:0951

Read on 2026-11-03T00:24:36.812Z under licence cve-terms-of-use@81bfa2f3 from https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2013/2xxx/CVE-2013-2094.json

Sources and licences

CISA
Source: CISA Catalog of Known Exploited Vulnerabilities, version 2026.10.30, CC0 1.0. Use of this data does not imply endorsement by CISA or DHS.
CC0 1.0 Universal
National Vulnerability Database (NIST)
This product uses the NVD API but is not endorsed or certified by the NVD.
NVD API Terms of Use (NIST publications in the public domain, 17 U.S.C. 105)
CVE Program, The MITRE Corporation
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Cite this page

Dragons Eye Ransomware Tracker, "CVE-2013-2094: Linux Kernel Privilege Escalation Vulnerability",
entity page, dataset version ref-cff52688e82b, updated 2026-11-02T23:39:54.475Z,
https://ransomware-tracker.com/cve/CVE-2013-2094 (accessed 2026-11-03).
Underlying source: CISA Catalog of Known Exploited Vulnerabilities, version 2026.10.30.
Underlying source: National Vulnerability Database (NIST), CVE API 2.0, record last modified 2026-06-16T23:52:44.150.
Underlying source: CVE List (CVE Program, The MITRE Corporation), record updated 2025-10-22T00:05:42.816Z.

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