CVE-2013-2094

high-risk
Published 2013-05-14

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.

Do I need to act?

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65.9% chance of exploitation in next 30 days
EPSS score — higher than 34% of all CVEs
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CISA KEV: actively exploited in the wild
On the Known Exploited Vulnerabilities catalog — federal agencies must patch
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3 public exploits available
25444, 33589, 26131
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.4/10 High
LOCAL / LOW complexity

Affected Products (1)

Affected Vendors

Linux

References (59)

Not Applicable http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=...
Third Party Advisory http://lists.centos.org/pipermail/centos-announce/2013-May/019729.html
Third Party Advisory http://lists.centos.org/pipermail/centos-announce/2013-May/019733.html
Third Party Advisory http://lists.opensuse.org/opensuse-security-announce/2013-05/msg00008.html
Third Party Advisory http://lists.opensuse.org/opensuse-security-announce/2013-05/msg00018.html
Third Party Advisory http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00005.html
Third Party Advisory http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00009.html
Third Party Advisory http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00017.html
Third Party Advisory http://lkml.indiana.edu/hypermail/linux/kernel/1304.1/03652.html
Third Party Advisory http://lkml.indiana.edu/hypermail/linux/kernel/1304.1/03976.html
Third Party Advisory http://lkml.indiana.edu/hypermail/linux/kernel/1304.1/04302.html
Third Party Advisory http://news.ycombinator.com/item?id=5703758
Exploit http://packetstormsecurity.com/files/121616/semtex.c
Third Party Advisory http://rhn.redhat.com/errata/RHSA-2013-0830.html
Patch http://twitter.com/djrbliss/statuses/334301992648331267
Third Party Advisory http://www.exploit-db.com/exploits/33589
Not Applicable http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.9
Mailing List http://www.mandriva.com/security/advisories?name=MDVSA-2013:176
Mailing List http://www.openwall.com/lists/oss-security/2013/05/14/6
Broken Link http://www.osvdb.org/93361
and 39 more references
64
/ 100
high-risk
Severity 26/34 · High
Exploitability 33/34 · Critical
Exposure 5/34 · Minimal