Alwil Avast! antivirus memory corruption

4-byte overflow on TAR archive parsing...

CVE-2006-4626

Heap-based buffer overflow in alwil avast! Anti-virus Engine before 4.7.869 allows remote attackers to execute arbitrary code via a crafted LHA file that contains extended headers with file and directory names whose concatenation triggers the overflow...

CVE-2005-1719

Unknown vulnerability in ALWIL avast! antivirus 4 4.6.6230 and earlier, when running on Windows NT 4.0, does not properly detect certain viruses...