Integer Overflow or Wraparound Affecting python-perf package, versions <0:3.10.0-123.4.2.el7


Severity

Recommended
high

Based on CentOS security rating.

Threat Intelligence

EPSS
0.18% (57th percentile)

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  • Snyk IDSNYK-CENTOS7-PYTHONPERF-2033506
  • published26 Jul 2021
  • disclosed13 Apr 2014

Introduced: 13 Apr 2014

CVE-2014-3144  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

Upgrade Centos:7 python-perf to version 0:3.10.0-123.4.2.el7 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python-perf package and not the python-perf package as distributed by Centos. See How to fix? for Centos:7 relevant fixed versions and status.

The (1) BPF_S_ANC_NLATTR and (2) BPF_S_ANC_NLATTR_NEST extension implementations in the sk_run_filter function in net/core/filter.c in the Linux kernel through 3.14.3 do not check whether a certain length value is sufficiently large, which allows local users to cause a denial of service (integer underflow and system crash) via crafted BPF instructions. NOTE: the affected code was moved to the __skb_get_nlattr and __skb_get_nlattr_nest functions before the vulnerability was announced.

CVSS Scores

version 3.1