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Incorrect Check of Function Return Value Affecting kernel-bootwrapper package, versions <0:3.10.0-327.28.2.el7

Severity

 Recommended
0.0
high
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.05% (19th percentile)

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  • Snyk IDSNYK-CENTOS7-KERNELBOOTWRAPPER-2068560
  • published26 Jul 2021
  • disclosed15 Jun 2016
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Introduced: 15 Jun 2016

CVE-2016-4470  (opens in a new tab)
CWE-253  (opens in a new tab)
First added by Snyk

How to fix?

Upgrade Centos:7 kernel-bootwrapper to version 0:3.10.0-327.28.2.el7 or higher.

NVD Description

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

The key_reject_and_link function in security/keys/key.c in the Linux kernel through 4.6.3 does not ensure that a certain data structure is initialized, which allows local users to cause a denial of service (system crash) via vectors involving a crafted keyctl request2 command.

References