NULL Pointer Dereference Affecting qemu-kvm-hw-usbredir package, versions <15:6.2.0-11.module+el8.6.0+1000+18e3b59f.5


Severity

Recommended
0.0
medium
0
10

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.38% (32nd percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-ROCKY8-QEMUKVMHWUSBREDIR-3221449
  • published5 Jan 2023
  • disclosed24 Aug 2022

Introduced: 24 Aug 2022

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

How to fix?

Upgrade Rocky-Linux:8 qemu-kvm-hw-usbredir to version 15:6.2.0-11.module+el8.6.0+1000+18e3b59f.5 or higher.
This issue was patched in RLSA-2022:1759.

NVD Description

Note: Versions mentioned in the description apply only to the upstream qemu-kvm-hw-usbredir package and not the qemu-kvm-hw-usbredir package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux: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 Base Scores

version 3.1