CVE-2021-20204

Name	CVE-2021-20204
Description	A heap memory corruption problem (use after free) can be triggered in libgetdata v0.10.0 when processing maliciously crafted dirfile databases. This degrades the confidentiality, integrity and availability of third-party software that uses libgetdata as a library. This vulnerability may lead to arbitrary code execution or privilege escalation depending on input/skills of attacker.
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-2660-1
Debian Bugs	988239

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
libgetdata (PTS)	buster	0.10.0-5+deb10u1	fixed
	bullseye	0.10.0-10	fixed
	bookworm	0.11.0-6	fixed
	trixie	0.11.0-12	fixed
	sid	0.11.0-13	fixed

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

Package	Type	Release	Fixed Version	Origin	Debian Bugs
libgetdata	source	stretch	0.9.4-1+deb9u1	DLA-2660-1
libgetdata	source	buster	0.10.0-5+deb10u1
libgetdata	source	(unstable)	0.10.0-10		988239

Notes

https://bugzilla.redhat.com/show_bug.cgi?id=1956348
https://bugs.launchpad.net/ubuntu/+source/libgetdata/+bug/1912050
Debian patch applied causes functional regressions: https://bugs.debian.org/992437