CVE-2013-2094
What it is
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.
At a glance
- Exploitability
- Can be exploited locally on the machine without logging in. High risk of data exposure, data tampering, service disruption.
- In the wild
- CISA lists this as exploited in real attacks. Treat as urgent.
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- ReservedThe CVE id was reserved by its CNA
- PublishedDisclosed publicly on CVE.org and NVD
- 2022-09-15 Exploited in the wildAdded to CISA's Known Exploited Vulnerabilities list
- 2022-10-06 Remediation deadlineCISA's due date for federal agencies to fix it
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: yes, CISA lists it. This puts it above everything that is not.
- Exploit odds: 47.7% in the next 30 days (EPSS).
- Severity: 8.4 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Added to CISA KEV
- 2022-09-15
- Exploit probability
- 47.7% · EPSS, next 30 days
- Weakness
- CWE-189
- Record status
- Analyzed
Affected
- Linux Kernel < 3.0.75
- Linux Kernel < 3.2.45
- Linux Kernel < 3.4.42
- Linux Kernel < 3.8.9
Attack profile CVSS 3.1 · 8.4
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2013-2094.md and follow it. Check whether this project is affected by CVE-2013-2094. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- http://twitter.com/djrbliss/statuses/334301992648331267
- https://github.com/torvalds/linux/commit/8176cced706b5e5d15887584150764894e94e02f
- http://twitter.com/djrbliss/statuses/334301992648331267
- https://github.com/torvalds/linux/commit/8176cced706b5e5d15887584150764894e94e02f
References
- 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