CVE-2011-2918: linux linux_kernel Uncontrolled Resource Consumption
Vulnerability summary
CVE-2011-2918 is a medium (CVSS 5.5) Uncontrolled Resource Consumption vulnerability in linux linux_kernel. EPSS estimates a 0.92% chance of exploitation in the next 30 days, higher than 60.3% of scored vulnerabilities. 1 public exploit is recorded.
Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 3Timeline
- 24-05-2012PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
The Performance Events subsystem in the Linux kernel before 3.1 does not properly handle event overflows associated with PERF_COUNT_SW_CPU_CLOCK events, which allows local users to cause a denial of service (system hang) via a crafted application.
CVSS metrics
2 scores · 1 source · 2 versionsEPSS trend
Probability
0.92%
Chance of exploitation in the next 30 days
Percentile
60%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.92% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
1 foundLinux Kernel 3.0.0 - 'perf_count_sw_cpu_clock' event Denial of Service
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Linux1 product
- linux_kernel< 3.1
1 vendor · 1 product
References
5 links- www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1X Refsource CONFIRMMailing ListPatchVendor Advisory
- git.kernel.orgX Refsource CONFIRM
- github.com/torvalds/linux/commit/a8b0ca17b80e92faab46ee7179ba9e99ccb61233X Refsource CONFIRMPatchThird Party Advisory
- www.openwall.com/lists/oss-security/2011/08/16/1Mailing ListX Refsource MLISTPatchThird Party Advisory
- bugzilla.redhat.com/show_bug.cgi?id=730706X Refsource CONFIRMIssue TrackingPatchThird Party Advisory