Stack-based buffer overflow in the ures_getByKeyWithFallback function in common/uresbund.cpp in International Components for Unicode (ICU) before 54.1 for C/C++ allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted uloc_getDisplayName call.
https://bugs.php.net/bug.php?id=67397
https://bugzilla.redhat.com/show_bug.cgi?id=1383569
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html