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High 8.4Known exploited (CISA KEV)Published May 14, 2013
CVE-2013-2094The 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…
Updated under an hour ago ()
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CISA lists it as known exploited since Sep 15, 2022; federal agencies had to remediate by Oct 6, 2022. Treat that date as your deadline.
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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.
- CVSS
- 8.4 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Added to CISA KEV Sep 15, 2022; federal remediation due Oct 6, 2022Apply updates per vendor instructions.
- EPSS (exploitation in the next 30 days)
- 47.71% (percentile 99)
- Assigned by
- redhat
- NVD analysis
- Analyzed
- Record last updated
- Oct 22, 2025
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
linux linux_kernel linux:linux_kernel | before 3.0.75; from 3.1 before 3.2.45; from 3.3 before 3.4.42; from 3.5 before 3.8.9 | NVD |
References
- http://lists.opensuse.org/opensuse-security-announce/2013-05/msg00018.htmlvendor-advisory, x-refsource-suse, third-party-advisory, vdb-entry
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:176vendor-advisory, x-refsource-mandriva, mailing-list, third-party-advisory
- http://lkml.indiana.edu/hypermail/linux/kernel/1304.1/04302.htmlmailing-list, x-refsource-mlist, third-party-advisory
- http://lkml.indiana.edu/hypermail/linux/kernel/1304.1/03652.htmlmailing-list, x-refsource-mlist, third-party-advisory, vdb-entry
- http://lists.centos.org/pipermail/centos-announce/2013-May/019733.htmlmailing-list, x-refsource-mlist, third-party-advisory, vdb-entry
- http://www.ubuntu.com/usn/USN-1826-1vendor-advisory, x-refsource-ubuntu, third-party-advisory
- http://lkml.indiana.edu/hypermail/linux/kernel/1304.1/03976.htmlmailing-list, x-refsource-mlist, third-party-advisory, vdb-entry
- http://www.ubuntu.com/usn/USN-1838-1vendor-advisory, x-refsource-ubuntu
- https://bugzilla.redhat.com/show_bug.cgi?id=962792x-refsource-confirm
- https://github.com/torvalds/linux/commit/8176cced706b5e5d15887584150764894e94e02fx-refsource-confirm
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.9x-refsource-confirm, not-applicable
- http://www.ubuntu.com/usn/USN-1828-1vendor-advisory, x-refsource-ubuntu, third-party-advisory
- http://lists.centos.org/pipermail/centos-announce/2013-May/019729.htmlmailing-list, x-refsource-mlist, third-party-advisory, vdb-entry
- http://www.ubuntu.com/usn/USN-1827-1vendor-advisory, x-refsource-ubuntu, third-party-advisory
- http://www.ubuntu.com/usn/USN-1836-1vendor-advisory, x-refsource-ubuntu
- http://www.osvdb.org/93361vdb-entry, x-refsource-osvdb, broken-link
- http://www.exploit-db.com/exploits/33589exploit, x-refsource-exploit-db, third-party-advisory, vdb-entry
- http://rhn.redhat.com/errata/RHSA-2013-0830.htmlvendor-advisory, x-refsource-redhat, third-party-advisory
- http://news.ycombinator.com/item?id=5703758x-refsource-misc, third-party-advisory
- http://www.openwall.com/lists/oss-security/2013/05/14/6mailing-list, x-refsource-mlist, third-party-advisory
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=8176cced706b5e5d15887584150764894e94e02fx-refsource-confirm, not-applicable
- http://lists.opensuse.org/opensuse-security-announce/2013-05/msg00008.htmlvendor-advisory, x-refsource-suse, third-party-advisory, vdb-entry
- http://packetstormsecurity.com/files/121616/semtex.cx-refsource-misc, exploit, third-party-advisory, vdb-entry
- http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00005.htmlvendor-advisory, x-refsource-suse, third-party-advisory, vdb-entry
- http://twitter.com/djrbliss/statuses/334301992648331267x-refsource-misc, patch
- http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00009.htmlthird-party-advisory, vdb-entry
- http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00017.htmlthird-party-advisory, vdb-entry
- http://www.reddit.com/r/netsec/comments/1eb9iwthird-party-advisory
- http://www.ubuntu.com/usn/USN-1825-1third-party-advisory
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