What’s Vulnerable › Vulnerabilities

CVE-2022-3165

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-10-17 · updated 2026-06-17
• Weakness: CWE-191

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.

Affected products

• Fedoraproject Fedora: 36, 37
• QEMU: from 6.1.0 through 7.1.0

References

• https://gitlab.com/qemu-project/qemu/-/commit/d307040b18
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I36LKZA7Z65J3LJU2P37LVTWDFTXBMPU/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZTY7TVHX62OJWF6IOBCIGLR2N5K4QN3E/
• https://security.netapp.com/advisory/ntap-20221223-0006/
• https://gitlab.com/qemu-project/qemu/-/commit/d307040b18
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I36LKZA7Z65J3LJU2P37LVTWDFTXBMPU/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZTY7TVHX62OJWF6IOBCIGLR2N5K4QN3E/
• https://security.netapp.com/advisory/ntap-20221223-0006/

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