Vulnerability 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 Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Qemu | Qemu | <= 7.1.0 |
| Fedoraproject | Extra Packages For Enterprise Linux | 8.0 |
| Fedoraproject | Fedora | 37 |
| Redhat | Enterprise Linux | 8.0 |
Related Weaknesses (CWE)
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2148506Issue TrackingPatchThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.nongnu.org/archive/html/qemu-devel/2022-11/msg04143.htmlMailing ListPatchThird Party Advisory
- https://security.netapp.com/advisory/ntap-20230127-0012/Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2148506Issue TrackingPatchThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.nongnu.org/archive/html/qemu-devel/2022-11/msg04143.htmlMailing ListPatchThird Party Advisory
- https://security.netapp.com/advisory/ntap-20230127-0012/Third Party Advisory
FAQ
What is CVE-2022-4144?
CVE-2022-4144 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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, potent...
How severe is CVE-2022-4144?
CVE-2022-4144 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-4144?
Check the references section above for vendor advisories and patch information. Affected products include: Qemu Qemu, Fedoraproject Extra Packages For Enterprise Linux, Fedoraproject Fedora, Redhat Enterprise Linux.