NULL Pointer Dereference Affecting qemu-chardev-baum package, versions <6.2.0-150400.37.29.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.05% (24th percentile)

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  • Snyk IDSNYK-SLES154-QEMUCHARDEVBAUM-6672988
  • published24 Apr 2024
  • disclosed23 Apr 2024

Introduced: 23 Apr 2024

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

How to fix?

Upgrade SLES:15.4 qemu-chardev-baum to version 6.2.0-150400.37.29.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream qemu-chardev-baum package and not the qemu-chardev-baum package as distributed by SLES. See How to fix? for SLES:15.4 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 Scores

version 3.1