Out-of-bounds Read Affecting python3-hivex package, versions <0:1.3.18-21.module+el8.4.0+10770+19c037f9


Severity

Recommended
medium

Based on CentOS security rating.

Threat Intelligence

EPSS
0.05% (16th percentile)

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  • Snyk IDSNYK-CENTOS8-PYTHON3HIVEX-2116454
  • published26 Jul 2021
  • disclosed2 Feb 2021

Introduced: 2 Feb 2021

CVE-2021-20221  (opens in a new tab)
CWE-125  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Centos:8 python3-hivex to version 0:1.3.18-21.module+el8.4.0+10770+19c037f9 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3-hivex package and not the python3-hivex package as distributed by Centos. See How to fix? for Centos: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