Race Condition Affecting kernel-abi-whitelists package, versions <0:3.10.0-327.36.3.el7


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

Exploit Maturity
Mature
EPSS
70.2% (99th percentile)

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  • Snyk IDSNYK-RHEL7-KERNELABIWHITELISTS-4627321
  • 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)

How to fix?

Upgrade RHEL:7 kernel-abi-whitelists to version 0:3.10.0-327.36.3.el7 or higher.
This issue was patched in RHSA-2016:2098.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-abi-whitelists package and not the kernel-abi-whitelists 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