CVE-2013-2094
High 8.4 Exploited in the wild (KEV)
Confirmed active exploitation — CISA KEV catalog
- Name
- Linux Kernel Privilege Escalation Vulnerability
- Added to catalog
- Remediation due date (US federal)
- Required action
- Apply updates per vendor instructions.
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.
Metrics
- CVSS 3.1
-
8.4 (HIGH)
Score source: CNA
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 48% (percentile: 99) as of 1 November 2026
- CWE
- CWE-189
Affected products
linux: linux kernel
References
- http://twitter.com/djrbliss/statuses/334301992648331267 Patch
- http://twitter.com/djrbliss/statuses/334301992648331267 Patch
- http://packetstormsecurity.com/files/121616/semtex.c ExploitThird Party AdvisoryVDB Entry
- http://packetstormsecurity.com/files/121616/semtex.c ExploitThird Party AdvisoryVDB Entry
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh… Not Applicable
- http://lists.centos.org/pipermail/centos-announce/2013-May/019729.html Third Party AdvisoryVDB Entry
- http://lists.centos.org/pipermail/centos-announce/2013-May/019733.html Third Party AdvisoryVDB Entry
- http://lists.opensuse.org/opensuse-security-announce/2013-05/msg00008.html Third Party AdvisoryVDB Entry
- http://lists.opensuse.org/opensuse-security-announce/2013-05/msg00018.html Third Party AdvisoryVDB Entry
- http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00005.html Third Party AdvisoryVDB Entry