Loop with Unreachable Exit Condition ('Infinite Loop') Affecting libvirt-daemon-driver-storage package, versions <0:6.0.0-37.module+el8.5.0+670+c4aa478c


Severity

Recommended
low

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.05% (16th percentile)

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  • Snyk IDSNYK-ROCKY8-LIBVIRTDAEMONDRIVERSTORAGE-3278440
  • published5 Jan 2023
  • disclosed16 Mar 2022

Introduced: 16 Mar 2022

CVE-2021-20257  (opens in a new tab)
CWE-835  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:8 libvirt-daemon-driver-storage to version 0:6.0.0-37.module+el8.5.0+670+c4aa478c or higher.
This issue was patched in RLSA-2021:5238.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libvirt-daemon-driver-storage package and not the libvirt-daemon-driver-storage package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:8 relevant fixed versions and status.

An infinite loop flaw was found in the e1000 NIC emulator of the QEMU. This issue occurs while processing transmits (tx) descriptors in process_tx_desc if various descriptor fields are initialized with invalid values. This flaw allows a guest to consume CPU cycles on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.

CVSS Scores

version 3.1