An issue was discovered in swftools through 20200710. A NULL pointer dereference exists in the function Lexer::Lexer() located in Lexer.cc. It allows an attacker to cause Denial of Service.

An issue was discovered in swftools through 20200710. A NULL pointer dereference exists in the function grealloc() located in gmem.cc. It allows an attacker to cause Denial of Service.

In SWFTools 2013-04-09-1007 on Windows, png2swf allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted file, related to a "Read Access Violation starting at image00000000_00400000+0x000000000001b5fe."

In SWFTools 2013-04-09-1007 on Windows, png2swf allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted file, related to a "Read Access Violation starting at image00000000_00400000+0x000000000001b596."

In SWFTools 2013-04-09-1007 on Windows, png2swf allows remote attackers to execute arbitrary code or cause a denial of service via a crafted file, related to a "User Mode Write AV near NULL starting at wow64!Wow64NotifyDebugger+0x000000000000001d."

In SWFTools 2013-04-09-1007 on Windows, png2swf allows remote attackers to execute arbitrary code or cause a denial of service via a crafted file, related to a "User Mode Write AV starting at image00000000_00400000+0x000000000001b72a."

SWFTools 2013-04-09-1007 on Windows has a "Data from Faulting Address controls Branch Selection starting at image00000000_00400000+0x0000000000003e71" issue. This issue can be triggered by a malformed TTF file that is mishandled by font2swf. Attackers could exploit this issue for DoS (Access Violation).