exiv2: Integer overflow in CrwMap:encode0x1810 leading to heap-based buffer overflow and DoS

A flaw was found in exiv2. A integer wraparound in the CrwMap:encode0x1810 function leads to memcpy call with a very large size allowing an attacker, who can provide a malicious image, to crash an application which uses the exiv2 library. The highest threat from this vulnerability is to service...