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Use After Free Affecting kernel-bootwrapper package, versions <0:3.10.0-514.72.1.el7

Severity

 Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    0.06% (30th percentile)

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  • Snyk ID SNYK-RHEL7-KERNELBOOTWRAPPER-5216201
  • published 1 Nov 2021
  • disclosed 15 May 2018
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Introduced: 15 May 2018

CVE-2018-20976 Open this link in a new tab
CWE-416 Open this link in a new tab

How to fix?

Upgrade RHEL:7 kernel-bootwrapper to version 0:3.10.0-514.72.1.el7 or higher.
This issue was patched in RHSA-2020:0178.

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.

An issue was discovered in fs/xfs/xfs_super.c in the Linux kernel before 4.18. A use after free exists, related to xfs_fs_fill_super failure.

References