high8.4Known exploitedPublic exploit code
CVE-2013-2094
Linux Kernel Privilege Escalation Vulnerability
Exploited in the wild
This vulnerability is on a Known Exploited Vulnerabilities catalogue, added 2022-09-15. Federal due date: 2022-10-06.
Apply updates per vendor instructions.
Public exploit code
Working exploit or proof of concept code has been published for this vulnerability. Treat unpatched systems as at risk.
- Linux Kernel 3.2.0-23/3.5.0-23 (Ubuntu 12.04/12.04.1/12.04.2 x64) - 'perf_swevent_init' Local Privilege Escalation (3)2014-05-31 · local · linux_x86-64 · Verified
- Linux Kernel < 3.8.9 (x86-64) - 'perf_swevent_init' Local Privilege Escalation (2)2013-06-11 · local · linux_x86-64 · Verified
- Linux Kernel 2.6.32 < 3.x (CentOS 5/6) - 'PERF_EVENTS' Local Privilege Escalation (1)2013-05-14 · local · linux
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| 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 |
Weakness classification
References
- NVD record
- CVE.org record
- CISA KEV catalog
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=8176cced706b5e5d15887584150764894e94e02f
- http://lists.centos.org/pipermail/centos-announce/2013-May/019729.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/msg00018.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/msg00017.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/1304.1/04302.html
- http://news.ycombinator.com/item?id=5703758
- http://packetstormsecurity.com/files/121616/semtex.c
- http://rhn.redhat.com/errata/RHSA-2013-0830.html
- http://twitter.com/djrbliss/statuses/334301992648331267
- http://www.exploit-db.com/exploits/33589
- 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.openwall.com/lists/oss-security/2013/05/14/6
- http://www.osvdb.org/93361
- http://www.reddit.com/r/netsec/comments/1eb9iw
- http://www.ubuntu.com/usn/USN-1825-1
- http://www.ubuntu.com/usn/USN-1826-1
- http://www.ubuntu.com/usn/USN-1827-1
- http://www.ubuntu.com/usn/USN-1828-1