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CVE-2013-2094
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…
High8.4Known exploitedEPSS 47.7%
- Published
- Updated
- Reserved
- Assigned by
- redhat
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.
Exploited in the wild
CISA lists this vulnerability in its Known Exploited Vulnerabilities catalog as Linux Kernel Privilege Escalation Vulnerability.
- Added
- 15 Sept 2022
- Fix due (US federal)
- 6 Oct 2022
- Used by ransomware
- Not known
Apply updates per vendor instructions.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | High8.4 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Analyzed | 3.1 | High8.4 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 47.7% · top 1.1% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: active · Automatable: no · Technical impact: total
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.4.
Weakness
- n/a
- CWE-noinfo Not enough information
- CWE-189 (opens in a new tab)All about CWE-189 and its CVEs
Affected products
n/a
- affected n/a
References (30)
- openSUSE-SU-2013:0847 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- MDVSA-2013:176 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
- [linux-kernel] 20130413 Re: sw_perf_event_destroy() oops while fuzzing (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [linux-kernel] 20130412 sw_perf_event_destroy() oops while fuzzing (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [CentOS-announce] 20130517 CESA-2013:0830 Important CentOS 6 kernel Update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- USN-1826-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- [linux-kernel] 20130412 Re: sw_perf_event_destroy() oops while fuzzing (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- USN-1838-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=962792 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://github.com/torvalds/linux/commit/8176cced706b5e5d15887584150764894e94e02f (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.9 (opens in a new tab)x_refsource_CONFIRMx_transferred
- USN-1828-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- [CentOS-announce] 20130515 CentOS-6 CVE-2013-2094 Kernel Issue (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- USN-1827-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-1836-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- 93361 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- 33589 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
- RHSA-2013:0830 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- http://news.ycombinator.com/item?id=5703758 (opens in a new tab)x_refsource_MISCx_transferred
- [oss-security] 20130514 Re: CVE Request: linux kernel perf out-of-bounds access (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=8176cced706b5e5d15887584150764894e94e02f (opens in a new tab)x_refsource_CONFIRMx_transferred
- SUSE-SU-2013:0819 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- http://packetstormsecurity.com/files/121616/semtex.c (opens in a new tab)x_refsource_MISCx_transferred
- openSUSE-SU-2013:0925 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- http://twitter.com/djrbliss/statuses/334301992648331267 (opens in a new tab)x_refsource_MISCx_transferred
- http://www.reddit.com/r/netsec/comments/1eb9iw (opens in a new tab)x_refsource_MISCx_transferred
- openSUSE-SU-2013:1042 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- USN-1825-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- openSUSE-SU-2013:0951 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2013-2094 (opens in a new tab)government-resource
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- CISA KEV catalog (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2013-2094)Record last updated .