CVE-2022-4144

Name	CVE-2022-4144
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.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
qemu (PTS)	buster	1:3.1+dfsg-8+deb10u8	vulnerable
	buster (security)	1:3.1+dfsg-8+deb10u9	vulnerable
	bullseye (security), bullseye	1:5.2+dfsg-11+deb11u2	vulnerable
	bookworm	1:7.2+dfsg-1	fixed
	sid	1:7.2+dfsg-2	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
qemu	source	(unstable)	1:7.2+dfsg-1

Notes

[bullseye] - qemu <no-dsa> (Minor issue)
https://bugzilla.redhat.com/show_bug.cgi?id=2148506
https://lists.nongnu.org/archive/html/qemu-devel/2022-11/msg04143.html
https://gitlab.com/qemu-project/qemu/-/issues/1336
https://gitlab.com/qemu-project/qemu/-/commit/6dbbf055148c6f1b7d8a3251a65bd6f3d1e1f622