CVE-2020-25652

Name	CVE-2020-25652
Description	A flaw was found in the spice-vdagentd daemon, where it did not properly handle client connections that can be established via the UNIX domain socket in `/run/spice-vdagentd/spice-vdagent-sock`. Any unprivileged local guest user could use this flaw to prevent legitimate agents from connecting to the spice-vdagentd daemon, resulting in a denial of service. The highest threat from this vulnerability is to system availability. This flaw affects spice-vdagent versions 0.20 and prior.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-2524-1
Debian Bugs	973769

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
spice-vdagent (PTS)	bullseye	0.20.0-2	fixed
	bookworm	0.22.1-3	fixed
	sid, trixie	0.22.1-4.1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
spice-vdagent	source	stretch	0.17.0-1+deb9u1		DLA-2524-1
spice-vdagent	source	(unstable)	0.20.0-2			973769

Notes

[buster] - spice-vdagent <no-dsa> (Minor issue)
https://www.openwall.com/lists/oss-security/2020/11/04/1
https://gitlab.freedesktop.org/spice/linux/vd_agent/-/commit/91caa9223857708475d29df1768208fed1675340
https://gitlab.freedesktop.org/spice/linux/vd_agent/-/commit/812ca777469a377c84b9861d7d326bfc72563304