CVE-2007-4771

Heap-based buffer overflow in the doInterval function in regexcmp.cpp in
libicu in International Components for Unicode (ICU) 3.8.1 and earlier
allows context-dependent attackers to cause a denial of service (memory
consumption) and possibly have unspecified other impact via a regular
expression that writes a large amount of data to the backtracking stack.
NOTE: some of these details are obtained from third party information.

Bugs

• <https://bugs.launchpad.net/ubuntu/+source/icu/+bug/186578&gt;