CVE-2017-7186 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-7186): libpcre1 in PCRE 8.40 and libpcre2 in PCRE2 10.23 allow remote attackers to cause a denial of service (segmentation violation for read access, and application crash) by triggering an invalid Unicode property lookup.