CVE-2018-19757

Name	CVE-2018-19757
Description	There is a NULL pointer dereference at function sixel_helper_set_additional_message (status.c) in libsixel 1.8.2 that will cause a denial of service.
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)
NVD severity	medium
Debian Bugs	931311

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
libsixel (PTS)	stretch	1.5.2-2+deb9u1	fixed
	buster	1.8.2-1+deb10u1	fixed
	bullseye, sid	1.8.6-2	fixed

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

Package	Type	Release	Fixed Version	Debian Bugs
libsixel	source	stretch	1.5.2-2+deb9u1
libsixel	source	buster	1.8.2-1+deb10u1
libsixel	source	(unstable)	1.8.2-2	931311

Notes

[jessie] - libsixel <no-dsa> (Minor issue)
https://github.com/saitoha/libsixel/issues/79
https://bugzilla.redhat.com/show_bug.cgi?id=1649197 (reproducer)