CVE-2019-1000020

Name	CVE-2019-1000020
Description	libarchive version commit 5a98dcf8a86364b3c2c469c85b93647dfb139961 onwards (version v2.8.0 onwards) contains a CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') vulnerability in ISO9660 parser, archive_read_support_format_iso9660.c, read_CE()/parse_rockridge() that can result in DoS by infinite loop. This attack appears to be exploitable via the victim opening a specially crafted ISO9660 file.
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-1668-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
libarchive (PTS)	bullseye	3.4.3-2+deb11u1	fixed
	bullseye (security)	3.4.3-2+deb11u2	fixed
	bookworm	3.6.2-1+deb12u1	fixed
	bookworm (security)	3.6.2-1+deb12u2	fixed
	sid, trixie	3.7.4-1.1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin
libarchive	source	jessie	3.1.2-11+deb8u7		DLA-1668-1
libarchive	source	stretch	3.2.2-2+deb9u2
libarchive	source	(unstable)	3.3.3-4	low

https://github.com/libarchive/libarchive/pull/1120
https://github.com/libarchive/libarchive/commit/8312eaa576014cd9b965012af51bc1f967b12423