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

Severity

 Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    0.05% (19th percentile)

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  • Snyk ID SNYK-RHEL7-KERNELDEBUG-5128664
  • published 26 Jul 2021
  • disclosed 15 Jun 2016
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Introduced: 15 Jun 2016

CVE-2016-4470 Open this link in a new tab
CWE-253 Open this link in a new tab

How to fix?

Upgrade RHEL:7 kernel-debug to version 0:3.10.0-327.28.2.el7 or higher.
This issue was patched in RHSA-2016:1539.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-debug package and not the kernel-debug package as distributed by RHEL. See How to fix? for RHEL: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