CVE-2020-27818

Name	CVE-2020-27818
Description	A flaw was found in the check_chunk_name() function of pngcheck-2.4.0. An attacker able to pass a malicious file to be processed by pngcheck could cause a temporary denial of service, posing a low risk to application availability.
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	976350

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
pngcheck (PTS)	buster, stretch	2.3.0-7	vulnerable
	bullseye, sid	2.3.0-13	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
pngcheck	source	(unstable)	2.3.0-13			976350

Notes

[buster] - pngcheck <no-dsa> (Minor issue)
[stretch] - pngcheck <no-dsa> (Minor issue)
https://bugzilla.redhat.com/show_bug.cgi?id=1902011
Patch applied in Fedora: https://src.fedoraproject.org/rpms/pngcheck/blob/cc48791e34201caf7b686084b735d06cef66c974/f/pngcheck-2.4.0-overflow-bz1897485.patch