Medium severity · published Nov 29, 2022
CVE-2022-4144
An out-of-bounds read flaw was found in the QXL display device emulation in QEMU
6.5
CVSS
0.3%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 22% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EL
Enterprise Linux · Redhat
8.0 · source: NVD
EP
Extra Packages For Enterprise Linux · Fedoraproject
8.0 · source: NVD
FE
Fedora · Fedoraproject
37 · source: NVD
QE
Qemu · Qemu
through 7.1.0 · source: NVD
Affected product
EP
Extra Packages For Enterprise Linux
Fedoraproject
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-4144
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-4144
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2148506
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GTVPHLLXJ65BUMFBUUZ35F3J632SLFRK/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I7J5IRXJYLELW7D43A75LOWRUE5EU54O/
Mailing List
https://lists.nongnu.org/archive/html/qemu-devel/2022-11/msg04143.html
Third Party Advisory
https://security.netapp.com/advisory/ntap-20230127-0012/
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