libarchive before 3.2.0 does not limit the number of recursive decompressions, which allows remote attackers to cause a denial of service (memory consumption and application crash) via a crafted gzip file.
https://github.com/libarchive/libarchive/issues/660
http://www.securityfocus.com/bid/92901
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
http://www.openwall.com/lists/oss-security/2016/09/08/18
http://www.openwall.com/lists/oss-security/2016/09/08/15