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.
References (5)
Core 5
Core References
Issue Tracking, Patch, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2148506
Mailing List, Patch, Third Party Advisory
https://lists.nongnu.org/archive/html/qemu-devel/2022-11/msg04143.html
Third Party Advisory
https://security.netapp.com/advisory/ntap-20230127-0012/
Mailing List, Third Party Advisory vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I7J5IRXJYLELW7D43A75LOWRUE5EU54O/
Mailing List, Third Party Advisory vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GTVPHLLXJ65BUMFBUUZ35F3J632SLFRK/
Scores
CVSS v3
6.5
EPSS
0.0002
EPSS Percentile
5.8%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-125
Status
published
Products (4)
fedoraproject/extra_packages_for_enterprise_linux
8.0
fedoraproject/fedora
37
qemu/qemu
< 7.1.0
redhat/enterprise_linux
8.0
Published
Nov 29, 2022
Tracked Since
Feb 18, 2026