CVE-2021-3545

Name	CVE-2021-3545
Description	An information disclosure vulnerability was found in the virtio vhost-user GPU device (vhost-user-gpu) of QEMU in versions up to and including 6.0. The flaw exists in virgl_cmd_get_capset_info() in contrib/vhost-user-gpu/virgl.c and could occur due to the read of uninitialized memory. A malicious guest could exploit this issue to leak memory from the host.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DSA-4980-1
Debian Bugs	989042

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
qemu (PTS)	jessie, jessie (lts)	1:2.1+dfsg-12+deb8u23	fixed
	stretch (security)	1:2.8+dfsg-6+deb9u17	fixed
	stretch (lts), stretch	1:2.8+dfsg-6+deb9u19	fixed
	buster (security), buster, buster (lts)	1:3.1+dfsg-8+deb10u12	fixed
	bullseye	1:5.2+dfsg-11+deb11u3	fixed
	bullseye (security)	1:5.2+dfsg-11+deb11u2	fixed
	bookworm	1:7.2+dfsg-7+deb12u7	fixed
	sid, trixie	1:9.1.1+ds-5	fixed

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

Package	Type	Release	Fixed Version	Origin	Debian Bugs
qemu	source	jessie	(not affected)
qemu	source	stretch	(not affected)
qemu	source	buster	(not affected)
qemu	source	bullseye	1:5.2+dfsg-11+deb11u1	DSA-4980-1
qemu	source	(unstable)	1:6.1+dfsg-1		989042

Notes

[buster] - qemu <not-affected> (Only minimal support present and not installed in binary packages)
[stretch] - qemu <not-affected> (The vulnerable code was introduced later)
https://lists.nongnu.org/archive/html/qemu-devel/2021-05/msg01155.html
https://lists.nongnu.org/archive/html/qemu-devel/2021-05/msg01153.html
https://gitlab.com/qemu-project/qemu/-/commit/121841b2
[jessie] - qemu <not-affected> (The vulnerable code is not present)