NULL Pointer Dereference The advisory has been revoked - it doesn't affect any version of package qemu-guest-agent  (opens in a new tab)


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  • Snyk IDSNYK-RHEL9-QEMUGUESTAGENT-9442136
  • published15 Mar 2025
  • disclosed12 Jan 2024

Introduced: 12 Jan 2024

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

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:9.

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 RHEL.

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.