NULL Pointer Dereference Affecting virt:rhel/qemu-kvm-block-gluster package, versions <15:6.2.0-11.module+el8.6.0+14707+5aa4b42d


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.1% (42nd percentile)

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  • Snyk IDSNYK-RHEL8-VIRT-4983553
  • published24 Dec 2021
  • disclosed12 Dec 2021

Introduced: 12 Dec 2021

CVE-2021-4158  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade RHEL:8 virt:rhel/qemu-kvm-block-gluster to version 15:6.2.0-11.module+el8.6.0+14707+5aa4b42d or higher.
This issue was patched in RHSA-2022:1759.

NVD Description

Note: Versions mentioned in the description apply only to the upstream virt:rhel/qemu-kvm-block-gluster package and not the virt:rhel/qemu-kvm-block-gluster package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

A NULL pointer dereference issue was found in the ACPI code of QEMU. A malicious, privileged user within the guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition.

CVSS Scores

version 3.1