This update for oniguruma fixes the following issues:
CVE-2019-19246: Fixed an out of bounds access during regular
expression matching (bsc#1157805).
CVE-2019-19204: Fixed an out of bounds access when compiling a
crafted regular expression (bsc#1164569).
CVE-2019-19203: Fixed an out of bounds access when performing a
string search (bsc#1164550).
CVE-2019-16163: Fixed an uncontrolled recursion issue when compiling
a crafted regular expression, which could lead to denial of service (bsc#1150130).
CVE-2020-26159: Fixed an off-by-one buffer overflow (bsc#1177179).
CVE-2019-13224: Fixed a potential use-after-free when handling
multiple different encodings (bsc#1142847).