Loop with Unreachable Exit Condition ('Infinite Loop') Affecting virt:av/libvirt-daemon-driver-storage-iscsi package, versions <0:7.0.0-14.4.module+el8.4.0+12413+d23780e6


Severity

Recommended
medium

Based on Red Hat Enterprise Linux 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-RHEL8-VIRT-4431513
  • 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 RHEL:8 virt:av/libvirt-daemon-driver-storage-iscsi to version 0:7.0.0-14.4.module+el8.4.0+12413+d23780e6 or higher.
This issue was patched in RHSA-2021:3703.

NVD Description

Note: Versions mentioned in the description apply only to the upstream virt:av/libvirt-daemon-driver-storage-iscsi package and not the virt:av/libvirt-daemon-driver-storage-iscsi package as distributed by RHEL. See How to fix? for RHEL: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