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NULL Pointer Dereference Affecting kernel-rt-debug package, versions <0:3.10.0-693.rt56.617.el7

Severity

 Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    0.04% (6th percentile)

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  • Snyk ID SNYK-RHEL7-KERNELRTDEBUG-4749900
  • published 26 Jul 2021
  • disclosed 21 Mar 2017
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Introduced: 21 Mar 2017

CVE-2017-2647 Open this link in a new tab
CWE-476 Open this link in a new tab

How to fix?

Upgrade RHEL:7 kernel-rt-debug to version 0:3.10.0-693.rt56.617.el7 or higher.
This issue was patched in RHSA-2017:2077.

NVD Description

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

The KEYS subsystem in the Linux kernel before 3.18 allows local users to gain privileges or cause a denial of service (NULL pointer dereference and system crash) via vectors involving a NULL value for a certain match field, related to the keyring_search_iterator function in keyring.c.