A vulnerability was found in gcc. Due to the inconsistent use of long and int for string/array length in cp-demangle.c there is an integer overflow that leads to a write access violation. The target crashes on an access violation at an address matching the destination operand of the instruction. External references: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70498 Upstream patch: https://gcc.gnu.org/viewcvs/gcc?view=revision&revision=235767 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-4490
