Race Condition Affecting kernel-rt-trace package, versions <0:3.10.0-327.36.3.rt56.238.el7


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

Exploit Maturity
Mature
EPSS
81.66% (99th percentile)

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  • Snyk IDSNYK-RHEL7-KERNELRTTRACE-4706729
  • published26 Jul 2021
  • disclosed19 Oct 2016

Introduced: 19 Oct 2016

CVE-2016-5195  (opens in a new tab)
CWE-362  (opens in a new tab)
First added by Snyk

How to fix?

Upgrade RHEL:7 kernel-rt-trace to version 0:3.10.0-327.36.3.rt56.238.el7 or higher.
This issue was patched in RHSA-2016:2110.

NVD Description

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

Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect handling of a copy-on-write (COW) feature to write to a read-only memory mapping, as exploited in the wild in October 2016, aka "Dirty COW."

References

CVSS Scores

version 3.1