Missing Initialization of a Variable Affecting perf package, versions <0:2.6.32-431.1.2.el6


Severity

Recommended
0.0
high
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.11% (46th percentile)

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  • Snyk IDSNYK-CENTOS6-PERF-2091365
  • published26 Jul 2021
  • disclosed21 Oct 2013

Introduced: 21 Oct 2013

CVE-2013-4470  (opens in a new tab)
CWE-456  (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 Linux kernel before 3.12, when UDP Fragmentation Offload (UFO) is enabled, does not properly initialize certain data structures, which allows local users to cause a denial of service (memory corruption and system crash) or possibly gain privileges via a crafted application that uses the UDP_CORK option in a setsockopt system call and sends both short and long packets, related to the ip_ufo_append_data function in net/ipv4/ip_output.c and the ip6_ufo_append_data function in net/ipv6/ip6_output.c.

References

CVSS Scores

version 3.1