CVE-2022-3165

QEMU: VNC: integer underflow in vnc_client_cut_text_ext leads to CPU exhaustion

Published Oct 17, 2022 CVSS 3.1 · 6.5 Medium EPSS 1.6% KEV · Not listed
Description
An integer underflow issue was found in the QEMU VNC server while processing ClientCutText messages in the extended format. A malicious client could use this flaw to make QEMU unresponsive by sending a specially crafted payload message, resulting in a denial of service.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2022-42588 An integer underflow issue was found in the QEMU VNC server while processing ClientCutText messages in the extended format. A malicious client could use this flaw to make QEMU unresponsive by sending a specially crafted payload message, resulting in a denial of service.
Ubuntu USN Ubuntu USN USN-5772-1 QEMU vulnerabilities
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
May 14, 2025, 8:12 PM
Reserved
Sep 8, 2022, 12:00 AM
Status
Modified
Published
Oct 17, 2022, 4:15 PM
Modified
Jun 17, 2026, 4:58 AM
Severity
Moderate
Public date
Sep 25, 2022, 12:00 AM