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Vulnerability record · CVE-2022-4144 · published 29 November 2022

CVE-2022-4144: Qemu out-of-bounds read vulnerability

Qemu · Qemu

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.

6.5 CVSS 3.1 Medium EPSS 0.29% · top 79.7% CWE-125 · Out-of-bounds read
6.5CVSS 3.1 base score
0.29%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
10References
17 Jun 2026Last modified by NVD

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.

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

Affected products

4 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://bugzilla.redhat.com/show_bug.cgi?id=2148506 Issue TrackingPatchThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GTVPHLLXJ65BUMFBUUZ35F3
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I7J5IRXJYLELW7D43A75LOW
https://lists.nongnu.org/archive/html/qemu-devel/2022-11/msg04143.html Mailing ListPatchThird Party Advisory
https://security.netapp.com/advisory/ntap-20230127-0012/ Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2148506 Issue TrackingPatchThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GTVPHLLXJ65BUMFBUUZ35F3
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I7J5IRXJYLELW7D43A75LOW
https://lists.nongnu.org/archive/html/qemu-devel/2022-11/msg04143.html Mailing ListPatchThird Party Advisory
https://security.netapp.com/advisory/ntap-20230127-0012/ Third Party Advisory

Track CVE-2022-4144 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

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Source: NIST National Vulnerability Database (record CVE-2022-4144), CISA KEV, FIRST EPSS (scores of 2026-10-10). This page is refreshed as NVD updates the record.