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CVE-2022-4144

Date: November 29, 2022

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.

Language: C

Severity Score

Related Resources (10)

https://security.netapp.com/advisory/ntap-20230127-0012/
https://bugzilla.redhat.com/show_bug.cgi?id=2148506
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GTVPHLLXJ65BUMFBUUZ35F3J632SLFRK/
https://people.canonical.com/~ubuntu-security/cve/CVE-2022-4144
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/I7J5IRXJYLELW7D43A75LOWRUE5EU54O/
https://lists.nongnu.org/archive/html/qemu-devel/2022-11/msg04143.html
https://access.redhat.com/security/cve/CVE-2022-4144
https://nvd.nist.gov/vuln/detail/CVE-2022-4144
https://security-tracker.debian.org/tracker/CVE-2022-4144
https://www.mend.io/vulnerability-database/CVE-2022-4144

Severity Score

Weakness Type (CWE)

Out-of-bounds Read

CWE-125

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): CHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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