CVE-2020-36646

Name	CVE-2020-36646
Description	A vulnerability classified as problematic has been found in MediaArea ZenLib up to 0.4.38. This affects the function Ztring::Date_From_Seconds_1970_Local of the file Source/ZenLib/Ztring.cpp. The manipulation of the argument Value leads to unchecked return value to null pointer dereference. Upgrading to version 0.4.39 is able to address this issue. The identifier of the patch is 6475fcccd37c9cf17e0cfe263b5fe0e2e47a8408. It is recommended to upgrade the affected component. The identifier VDB-217629 was assigned to this vulnerability.
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-3290-1, ELA-781-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
libzen (PTS)	jessie	0.4.29-1	vulnerable
	stretch (lts), stretch	0.4.34-1+deb9u1	fixed
	buster (security), buster, buster (lts)	0.4.37-1+deb10u1	fixed
	bullseye	0.4.38-1+deb11u1	fixed
	bookworm	0.4.41-2	fixed
	sid, trixie	0.4.41-2.1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin
libzen	source	jessie	(unfixed)	end-of-life
libzen	source	stretch	0.4.34-1+deb9u1		ELA-781-1
libzen	source	buster	0.4.37-1+deb10u1		DLA-3290-1
libzen	source	bullseye	0.4.38-1+deb11u1
libzen	source	(unstable)	0.4.39-1

https://github.com/MediaArea/ZenLib/pull/119
https://github.com/MediaArea/ZenLib/commit/6475fcccd37c9cf17e0cfe263b5fe0e2e47a8408 (v0.4.39)