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Out-of-Bounds Affecting kernel-bootwrapper package, versions <0:3.10.0-957.46.1.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-4882758
  • published 26 Jul 2021
  • disclosed 26 Jul 2019
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Introduced: 26 Jul 2019

CVE-2018-20856 Open this link in a new tab
CWE-119 Open this link in a new tab

How to fix?

Upgrade RHEL:7 kernel-bootwrapper to version 0:3.10.0-957.46.1.el7 or higher.
This issue was patched in RHSA-2020:0664.

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 the Linux kernel before 4.18.7. In block/blk-core.c, there is an __blk_drain_queue() use-after-free because a certain error case is mishandled.

References