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NULL Pointer Dereference Affecting kernel-bootwrapper package, versions <0:3.10.0-957.1.3.el7

Severity

 Recommended
0.0
medium
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-KERNELBOOTWRAPPER-4823073
  • published 26 Jul 2021
  • disclosed 26 Nov 2018
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Introduced: 26 Nov 2018

CVE-2018-14646 Open this link in a new tab
CWE-476 Open this link in a new tab

How to fix?

Upgrade RHEL:7 kernel-bootwrapper to version 0:3.10.0-957.1.3.el7 or higher.
This issue was patched in RHSA-2018:3651.

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 RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

The Linux kernel before 4.15-rc8 was found to be vulnerable to a NULL pointer dereference bug in the __netlink_ns_capable() function in the net/netlink/af_netlink.c file. A local attacker could exploit this when a net namespace with a netnsid is assigned to cause a kernel panic and a denial of service.