Loop with Unreachable Exit Condition ('Infinite Loop') Affecting qemu-kvm-common package, versions <17:8.2.0-11.el9_4


Severity

Recommended
0.0
medium
0
10

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.16% (54th percentile)

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  • Snyk IDSNYK-ALMALINUX9-QEMUKVMCOMMON-6811303
  • published7 May 2024
  • disclosed30 Apr 2024

Introduced: 30 Apr 2024

CVE-2023-3255  (opens in a new tab)
CWE-835  (opens in a new tab)
First added by Snyk

How to fix?

Upgrade AlmaLinux:9 qemu-kvm-common to version 17:8.2.0-11.el9_4 or higher.
This issue was patched in ALSA-2024:2135.

NVD Description

Note: Versions mentioned in the description apply only to the upstream qemu-kvm-common package and not the qemu-kvm-common package as distributed by AlmaLinux. See How to fix? for AlmaLinux:9 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