The x86_assign_hw_event function in arch/x86/kernel/cpu/perf_event.c in the Performance Events subsystem in the Linux kernel before 2.6.39 does not properly calculate counter values, which allows local users to cause a denial of service (panic) via the perf program.
Published 2012-05-24 23:55:02
Updated 2023-02-13 04:31:08
Source Red Hat, Inc.
View at NVD,   CVE.org
Vulnerability category: Denial of service

Products affected by CVE-2011-2521

Threat overview for CVE-2011-2521

Top countries where our scanners detected CVE-2011-2521
Top open port discovered on systems with this issue 49152
IPs affected by CVE-2011-2521 1,556
Threat actors abusing to this issue? Yes
Find out if you* are affected by CVE-2011-2521!
*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2011-2521

0.04%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 6 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2011-2521

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
4.9
MEDIUM AV:L/AC:L/Au:N/C:N/I:N/A:C
3.9
6.9
NIST

CWE ids for CVE-2011-2521

  • Assigned by: nvd@nist.gov (Primary)

References for CVE-2011-2521

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