Out-of-bounds Read Affecting virt:rhel/python3-libvirt package, versions <0:6.0.0-1.module_el8.5.0+2608+72063365


Severity

Recommended
0.0
medium
0
10

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.05% (16th percentile)

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  • Snyk IDSNYK-ALMALINUX8-VIRT-5641982
  • published28 May 2023
  • disclosed10 Aug 2021

Introduced: 10 Aug 2021

CVE-2021-20221  (opens in a new tab)
CWE-125  (opens in a new tab)
First added by Snyk

How to fix?

Upgrade AlmaLinux:8 virt:rhel/python3-libvirt to version 0:6.0.0-1.module_el8.5.0+2608+72063365 or higher.
This issue was patched in ALSA-2021:3061.

NVD Description

Note: Versions mentioned in the description apply only to the upstream virt:rhel/python3-libvirt package and not the virt:rhel/python3-libvirt package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

An out-of-bounds heap buffer access issue was found in the ARM Generic Interrupt Controller emulator of QEMU up to and including qemu 4.2.0on aarch64 platform. The issue occurs because while writing an interrupt ID to the controller memory area, it is not masked to be 4 bits wide. It may lead to the said issue while updating controller state fields and their subsequent processing. A privileged guest user may use this flaw to crash the QEMU process on the host resulting in DoS scenario.

CVSS Scores

version 3.1