Loop with Unreachable Exit Condition ('Infinite Loop') Affecting qemu-virtiofsd package, versions <15:7.2.0-5.module+el8.8.0+21147+1292344f


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.12% (31st percentile)

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  • Snyk IDSNYK-ORACLE8-QEMUVIRTIOFSD-5950168
  • published8 Oct 2023
  • disclosed13 Sept 2023

Introduced: 13 Sep 2023

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

How to fix?

Upgrade Oracle:8 qemu-virtiofsd to version 15:7.2.0-5.module+el8.8.0+21147+1292344f or higher.
This issue was patched in ELSA-2023-12855.

NVD Description

Note: Versions mentioned in the description apply only to the upstream qemu-virtiofsd package and not the qemu-virtiofsd package as distributed by Oracle. See How to fix? for Oracle: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 Base Scores

version 3.1