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. http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-6908
