Uncontrolled Recursion Affecting qemu-hw-display-virtio-vga package, versions <5.2.0-103.2


Severity

Recommended
0.0
low
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.05% (21st 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-SLES153-QEMUHWDISPLAYVIRTIOVGA-2666930
  • published14 Apr 2022
  • disclosed27 Aug 2021

Introduced: 27 Aug 2021

CVE-2021-20255  (opens in a new tab)
CWE-674  (opens in a new tab)

How to fix?

Upgrade SLES:15.3 qemu-hw-display-virtio-vga to version 5.2.0-103.2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream qemu-hw-display-virtio-vga package and not the qemu-hw-display-virtio-vga package as distributed by SLES. See How to fix? for SLES:15.3 relevant fixed versions and status.

A stack overflow via an infinite recursion vulnerability was found in the eepro100 i8255x device emulator of QEMU. This issue occurs while processing controller commands due to a DMA reentry issue. This flaw allows a guest user or process to consume CPU cycles or crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.

CVSS Scores

version 3.1