Loop with Unreachable Exit Condition ('Infinite Loop') Affecting virt-devel:rhel/python3-libnbd package, versions <0:1.6.0-5.module+el8.9.0+18724+20190c23


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.16% (54th percentile)

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  • Snyk IDSNYK-RHEL8-VIRTDEVEL-7063582
  • published23 May 2024
  • disclosed4 Jul 2023

Introduced: 4 Jul 2023

CVE-2023-3255  (opens in a new tab)
CWE-835  (opens in a new tab)

How to fix?

Upgrade RHEL:8 virt-devel:rhel/python3-libnbd to version 0:1.6.0-5.module+el8.9.0+18724+20190c23 or higher.
This issue was patched in RHSA-2024:2962.

NVD Description

Note: Versions mentioned in the description apply only to the upstream virt-devel:rhel/python3-libnbd package and not the virt-devel:rhel/python3-libnbd package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

A flaw was found in the QEMU built-in VNC server while processing ClientCutText messages. A wrong exit condition may lead to an infinite loop when inflating an attacker controlled zlib buffer in the inflate_buffer function. This could allow a remote authenticated client who is able to send a clipboard to the VNC server to trigger a denial of service.

CVSS Scores

version 3.1