libarchive version commit 9693801580c0cf7c70e862d305270a16b52826a7 onwards (release v3.2.0 onwards) contains a CWE-20: Improper Input Validation vulnerability in WARC parser - libarchive/archive_read_support_format_warc.c, _warc_read() that can result in DoS - quasi-infinite run time and disk usage from tiny file. This attack appear to be exploitable via the victim must open a specially crafted WARC file.
https://www.debian.org/security/2018/dsa-4360
https://usn.ubuntu.com/3859-1/
https://github.com/libarchive/libarchive/pull/1105/commits/9c84b7426660c09c18cc349f6d70b5f8168b5680
https://github.com/libarchive/libarchive/pull/1105
https://bugs.launchpad.net/ubuntu/+source/libarchive/+bug/1794909
http://www.securityfocus.com/bid/106324
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00055.html