The bzread function in ext/bz2/bz2.c in PHP before 5.5.38, 5.6.x before 5.6.24, and 7.x before 7.0.9 allows remote attackers to cause a denial of service (out-of-bounds write) or execute arbitrary code via a crafted bz2 archive.
https://security.netapp.com/advisory/ntap-20180112-0001/
https://bugzilla.redhat.com/show_bug.cgi?id=1358395
http://www.securitytracker.com/id/1036430
http://www.securityfocus.com/bid/92051
http://www.securityfocus.com/archive/1/538966/100/0/threaded
http://www.debian.org/security/2016/dsa-3631
http://rhn.redhat.com/errata/RHSA-2016-2750.html
http://rhn.redhat.com/errata/RHSA-2016-2598.html