NULL Pointer Dereference Affecting qemu-guest-agent package, versions <17:8.2.0-11.el9_4


Severity

Recommended
0.0
medium
0
10

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
1.26% (66th percentile)

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  • Snyk IDSNYK-ORACLE9-QEMUGUESTAGENT-6812061
  • published8 May 2024
  • disclosed12 Jan 2024

Introduced: 12 Jan 2024

CVE-2023-6683  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade Oracle:9 qemu-guest-agent to version 17:8.2.0-11.el9_4 or higher.
This issue was patched in ELSA-2024-2135.

NVD Description

Note: Versions mentioned in the description apply only to the upstream qemu-guest-agent package and not the qemu-guest-agent package as distributed by Oracle. See How to fix? for Oracle:9 relevant fixed versions and status.

A flaw was found in the QEMU built-in VNC server while processing ClientCutText messages. The qemu_clipboard_request() function can be reached before vnc_server_cut_text_caps() was called and had the chance to initialize the clipboard peer, leading to a NULL pointer dereference. This could allow a malicious authenticated VNC client to crash QEMU and trigger a denial of service.

CVSS Base Scores

version 3.1