Symantec Antivirus Scan Engine any version

Heap-based buffer overflow in the DEC2EXE module for Symantec AntiVirus Library allows remote attackers to execute arbitrary code via a UPX compressed file containing a negative virtual offset to a crafted PE header.

Multiple interpretation error in unspecified versions of Symantec Antivirus allows remote attackers to bypass virus detection via a malicious executable in a specially crafted RAR file with malformed central and local headers, which can still be opened by products such as Winrar and PowerZip, even though they are rejected as corrupted by Winzip and BitZipper.