CVE-2021-3700

Name	CVE-2021-3700
Description	A use-after-free vulnerability was found in usbredir in versions prior to 0.11.0 in the usbredirparser_serialize() in usbredirparser/usbredirparser.c. This issue occurs when serializing large amounts of buffered write data in the case of a slow or blocked destination.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
References	DLA-2958-1
NVD severity	medium

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
usbredir (PTS)	stretch	0.7.1-1	vulnerable
	stretch (security)	0.7.1-1+deb9u1	fixed
	buster, bullseye	0.8.0-1	vulnerable
	bookworm, sid	0.11.0-2	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
usbredir	source	stretch	0.7.1-1+deb9u1		DLA-2958-1
usbredir	source	(unstable)	0.11.0-1

Notes

[bullseye] - usbredir <no-dsa> (Minor issue)
[buster] - usbredir <no-dsa> (Minor issue)
https://gitlab.freedesktop.org/spice/usbredir/-/commit/03c519ff5831ba75120e00ebebbf1d5a1f7220ab (usbredir-0.11.0)