Improper Input Validation Affecting perf package, versions <0:2.6.32-431.11.2.el6


Severity

Recommended
high

Based on CentOS security rating.

Threat Intelligence

EPSS
0.04% (12th percentile)

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  • Snyk IDSNYK-CENTOS6-PERF-2095819
  • published26 Jul 2021
  • disclosed21 Nov 2013

Introduced: 21 Nov 2013

CVE-2013-7270  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade Centos:6 perf to version 0:2.6.32-431.11.2.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 packet_recvmsg function in net/packet/af_packet.c in the Linux kernel before 3.12.4 updates a certain length value before ensuring that an associated data structure has been initialized, which allows local users to obtain sensitive information from kernel memory via a (1) recvfrom, (2) recvmmsg, or (3) recvmsg system call.

CVSS Scores

version 3.1