Denial of Service (DoS) Affecting torvalds/linux package, versions [,2.6.39)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.05% (17th percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-3004877
  • published26 Jan 2022
  • disclosed24 May 2012
  • creditUnknown

Introduced: 24 May 2012

CVE-2011-2521  (opens in a new tab)
CWE-189  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 2.6.39 or higher.

Overview

Affected versions of this package are vulnerable to Denial of Service (DoS). 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.

CVSS Base Scores

version 3.1