CVE-2014-4171 Affecting python-perf package, versions <0:3.10.0-123.20.1.el7


Severity

Recommended
high

Based on CentOS security rating.

Threat Intelligence

EPSS
0.04% (12th percentile)

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  • Snyk IDSNYK-CENTOS7-PYTHONPERF-2041931
  • published26 Jul 2021
  • disclosed17 Jun 2014

Introduced: 17 Jun 2014

CVE-2014-4171  (opens in a new tab)
First added by Snyk

How to fix?

Upgrade Centos:7 python-perf to version 0:3.10.0-123.20.1.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.

mm/shmem.c in the Linux kernel through 3.15.1 does not properly implement the interaction between range notification and hole punching, which allows local users to cause a denial of service (i_mutex hold) by using the mmap system call to access a hole, as demonstrated by interfering with intended shmem activity by blocking completion of (1) an MADV_REMOVE madvise call or (2) an FALLOC_FL_PUNCH_HOLE fallocate call.

CVSS Scores

version 3.1