Loop with Unreachable Exit Condition ('Infinite Loop') Affecting libguestfs-winsupport package, versions <0:8.2-1.module+el8.3.0+6423+e4cb6418


Severity

Recommended
medium

Based on CentOS 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-CENTOS8-LIBGUESTFSWINSUPPORT-2116988
  • published26 Jul 2021
  • disclosed24 Feb 2021

Introduced: 24 Feb 2021

CVE-2021-3416  (opens in a new tab)
CWE-835  (opens in a new tab)

How to fix?

Upgrade Centos:8 libguestfs-winsupport to version 0:8.2-1.module+el8.3.0+6423+e4cb6418 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libguestfs-winsupport package and not the libguestfs-winsupport package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

A potential stack overflow via infinite loop issue was found in various NIC emulators of QEMU in versions up to and including 5.2.0. The issue occurs in loopback mode of a NIC wherein reentrant DMA checks get bypassed. A guest user/process may use this flaw to consume CPU cycles or crash the QEMU process on the host resulting in DoS scenario.

CVSS Scores

version 3.1