The ber_get_next function in libraries/liblber/io.c in OpenLDAP 2.4.42 and earlier allows remote attackers to cause a denial of service (reachable assertion and application crash) via crafted BER data, as demonstrated by an attack against slapd.
https://support.apple.com/HT205637
http://www.ubuntu.com/usn/USN-2742-1
http://www.securitytracker.com/id/1033534
http://www.securityfocus.com/bid/76714
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
http://www.debian.org/security/2015/dsa-3356
http://rhn.redhat.com/errata/RHSA-2015-1840.html
http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00040.html
http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00039.html
http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00037.html
http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00032.html
http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00031.html
http://lists.apple.com/archives/security-announce/2015/Dec/msg00005.html