CVE-2022-3165 — Integer Underflow (Wrap or Wraparound) in Qemu

CWE-191 — Integer Underflow (Wrap or Wraparound)CWE-400 — Uncontrolled Resource Consumption8 documents7 sources
Severity
6.5MEDIUMNVD
OSV8.5
EPSS
0.2%
top 60.33%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
8
QemuDebian QemuFedoraproject Fedora+5 more
Timeline
PublishedOct 17
Latest updateDec 12

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 2.8 | Impact: 3.6

Affected Packages10 packages

▶debiandebian/qemu< qemu 1:7.2+dfsg-1 (bookworm)
▶Debianqemu/qemu< 1:7.2+dfsg-1+2
▶Ubuntuqemu/qemu< 1:2.11+dfsg-1ubuntu7.41+4
▶NVDqemu/qemu6.1.0 — 7.1.0
▶CVEListV5qemu/qemuAffected 6.1.0 and later. Will be fixed in 7.2.0-rc0.

Also affects: Fedora 36, 37

Patches

Patch: gitlab.com ↗Patch: gitlab.com ↗

🔴Vulnerability Details

3
OSV
qemu vulnerabilities↗2022-12-12
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OSV
CVE-2022-3165: An integer underflow issue was found in the QEMU VNC server while processing ClientCutText messages in the extended format↗2022-10-17
▶
GHSA
GHSA-3wph-8799-87r7: An integer underflow issue was found in the QEMU VNC server while processing ClientCutText messages in the extended format↗2022-10-17
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📋Vendor Advisories

4
Ubuntu
QEMU vulnerabilities↗2022-12-12
▶
Microsoft
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 ↗2022-10-11
▶
Red Hat
QEMU: VNC: integer underflow in vnc_client_cut_text_ext leads to CPU exhaustion↗2022-09-25
▶
Debian
CVE-2022-3165: qemu - An integer underflow issue was found in the QEMU VNC server while processing Cli...↗2022
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