CVE-2022-4144

MediumCVSS 6.5/10Last modified Jun 17, 2026

Description

An out-of-bounds read flaw was found in the QXL display device emulation in QEMU. The qxl_phys2virt() function does not check the size of the structure pointed to by the guest physical address, potentially reading past the end of the bar space into adjacent pages. A malicious guest user could use this flaw to crash the QEMU process on the host causing a denial of service condition.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Weakness enumeration

CWE-125

Affected software

Vendor	Product	Versions
n/a	QEMU (QXL device)	affects versions up to latest v7.1.0

References

https://bugzilla.redhat.com/show_bug.cgi?id=2148506Issue Tracking, Patch, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GTVPHLLXJ65BUMFBUUZ35F3J632SLFRK/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I7J5IRXJYLELW7D43A75LOWRUE5EU54O/
https://lists.nongnu.org/archive/html/qemu-devel/2022-11/msg04143.htmlMailing List, Patch, Third Party Advisory
https://security.netapp.com/advisory/ntap-20230127-0012/Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2148506Issue Tracking, Patch, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GTVPHLLXJ65BUMFBUUZ35F3J632SLFRK/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I7J5IRXJYLELW7D43A75LOWRUE5EU54O/
https://lists.nongnu.org/archive/html/qemu-devel/2022-11/msg04143.htmlMailing List, Patch, Third Party Advisory
https://security.netapp.com/advisory/ntap-20230127-0012/Third Party Advisory

Timeline

Published: Nov 29, 2022
Last modified: Jun 17, 2026
NVD status: Modified

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