- CVE-2020-14155: Fixed integer overflow via a large number after a '(?C' substring (bsc#1172974). - CVE-2019-20838: Fixed buffer over-read in JIT compiler (bsc#1172973). - CVE-2017-7244: Fixed invalid read in _pcre32_xclass() (bsc#1030807). - CVE-2017-7245: Fixed buffer overflow in the pcre32_copy_substring (bsc#1030805). - CVE-2017-7246: Fixed another buffer overflow in the pcre32_copy_substring (bsc#1030803). - CVE-2017-7186: Fixed denial of service caused by an invalid Unicode property lookup (bsc#1030066). - CVE-2017-6004: Fixed denial of service via crafted regular expression (bsc#1025709).