# CVE-2013-2094: Linux Kernel Privilege Escalation Vulnerability

> CVE-2013-2094: Linux Kernel Privilege Escalation Vulnerability. CVSS 8.4 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2013-2094
Last updated: 2025-10-22T00:05:42Z

- Published: 2013-05-14 20:00 UTC · Updated: 2025-10-22 00:05 UTC · Assigner: redhat
- CVSS: 8.4 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS: 47.7%, 99th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2022-09-15, federal due date 2022-10-06, ransomware use: Unknown

## 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.

## CISA required action

Apply updates per vendor instructions.

## Affected vendors and products

- Linux: Kernel

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2013-2094)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2013-2094)
- [http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=8176cced706b5e5d15887584150764894e94e02f](http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%253Ba=commit%253Bh=8176cced706b5e5d15887584150764894e94e02f)
- [http://lists.centos.org/pipermail/centos-announce/2013-May/019729.html](http://lists.centos.org/pipermail/centos-announce/2013-May/019729.html)
- [http://lists.centos.org/pipermail/centos-announce/2013-May/019733.html](http://lists.centos.org/pipermail/centos-announce/2013-May/019733.html)
- [http://lists.opensuse.org/opensuse-security-announce/2013-05/msg00008.html](http://lists.opensuse.org/opensuse-security-announce/2013-05/msg00008.html)
- [http://lists.opensuse.org/opensuse-security-announce/2013-05/msg00018.html](http://lists.opensuse.org/opensuse-security-announce/2013-05/msg00018.html)
- [http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00005.html](http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00005.html)
- [http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00009.html](http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00009.html)
- [http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00017.html](http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00017.html)
- [http://lkml.indiana.edu/hypermail/linux/kernel/1304.1/03652.html](http://lkml.indiana.edu/hypermail/linux/kernel/1304.1/03652.html)
- [http://lkml.indiana.edu/hypermail/linux/kernel/1304.1/03976.html](http://lkml.indiana.edu/hypermail/linux/kernel/1304.1/03976.html)
- [http://lkml.indiana.edu/hypermail/linux/kernel/1304.1/04302.html](http://lkml.indiana.edu/hypermail/linux/kernel/1304.1/04302.html)
- [http://news.ycombinator.com/item?id=5703758](http://news.ycombinator.com/item?id=5703758)
- [http://packetstormsecurity.com/files/121616/semtex.c](http://packetstormsecurity.com/files/121616/semtex.c)
- [http://rhn.redhat.com/errata/RHSA-2013-0830.html](http://rhn.redhat.com/errata/RHSA-2013-0830.html)
- [https://bugzilla.redhat.com/show\_bug.cgi?id=962792](https://bugzilla.redhat.com/show_bug.cgi?id=962792)
- [https://github.com/torvalds/linux/commit/8176cced706b5e5d15887584150764894e94e02f](https://github.com/torvalds/linux/commit/8176cced706b5e5d15887584150764894e94e02f)
- [http://twitter.com/djrbliss/statuses/334301992648331267](http://twitter.com/djrbliss/statuses/334301992648331267)
- [http://www.exploit-db.com/exploits/33589](http://www.exploit-db.com/exploits/33589)
- [http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.9](http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.9)
- [http://www.mandriva.com/security/advisories?name=MDVSA-2013:176](http://www.mandriva.com/security/advisories?name=MDVSA-2013:176)
- [http://www.openwall.com/lists/oss-security/2013/05/14/6](http://www.openwall.com/lists/oss-security/2013/05/14/6)
- [http://www.osvdb.org/93361](http://www.osvdb.org/93361)
- [http://www.reddit.com/r/netsec/comments/1eb9iw](http://www.reddit.com/r/netsec/comments/1eb9iw)
- [http://www.ubuntu.com/usn/USN-1825-1](http://www.ubuntu.com/usn/USN-1825-1)
- [http://www.ubuntu.com/usn/USN-1826-1](http://www.ubuntu.com/usn/USN-1826-1)
- [http://www.ubuntu.com/usn/USN-1827-1](http://www.ubuntu.com/usn/USN-1827-1)
- [http://www.ubuntu.com/usn/USN-1828-1](http://www.ubuntu.com/usn/USN-1828-1)
- [http://www.ubuntu.com/usn/USN-1836-1](http://www.ubuntu.com/usn/USN-1836-1)
- [http://www.ubuntu.com/usn/USN-1838-1](http://www.ubuntu.com/usn/USN-1838-1)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2013-2094 · Markdown: https://rewindex.com/cve/CVE-2013-2094.md · JSON: https://rewindex.com/api/v1/cves/CVE-2013-2094 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:47:12.780Z