Information Exposure Affecting perf package, versions <0:2.6.32-431.1.2.el6


Severity

Recommended
high

Based on CentOS security rating.

Threat Intelligence

EPSS
0.05% (17th percentile)

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  • Snyk IDSNYK-CENTOS6-PERF-2091319
  • published26 Jul 2021
  • disclosed17 Apr 2013

Introduced: 17 Apr 2013

CVE-2013-2141  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

Upgrade Centos:6 perf to version 0:2.6.32-431.1.2.el6 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream perf package and not the perf package as distributed by Centos. See How to fix? for Centos:6 relevant fixed versions and status.

The do_tkill function in kernel/signal.c in the Linux kernel before 3.8.9 does not initialize a certain data structure, which allows local users to obtain sensitive information from kernel memory via a crafted application that makes a (1) tkill or (2) tgkill system call.

CVSS Base Scores

version 3.1