XnSoft XnView Classic RWZ File Parsing Integer Underflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of XnSoft XnView Classic. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of RWZ files. The issue results from the lack of proper validation of user-supplied data, which can result in an integer underflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-22913.

XnView Classic before 2.51.3 on Windows has a Write Access Violation at xnview.exe+0x3125D6.

XnView Classic before 2.51.3 on Windows has a Write Access Violation at xnview.exe+0x3ADBD0.

Buffer Overflow vulnerability in XnView Classic v.2.51.5 allows a local attacker to execute arbitrary code via a crafted TIF file.

Buffer Overflow vulnerability in XNView before 2.50, allows local attackers to execute arbitrary code via crafted GEM bitmap file.

Buffer Overflow vulnerability in XNView version 2.49.3, allows local attackers to execute arbitrary code via crafted TIFF file.

XnView MP v0.96.4 was discovered to contain a heap overflow which allows attackers to cause a denial of service (DoS) via a crafted ico file. Related to a Read Access Violation starting at USER32!SmartStretchDIBits+0x33.

XnView MP v0.96.4 was discovered to contain a heap overflow which allows attackers to cause a denial of service (DoS) via a crafted pict file. Related to a User Mode Write AV starting at ntdll!RtlpLowFragHeapFree.

XnView 2.03 has a stack-based buffer overflow vulnerability

XnView 2.03 has an integer overflow vulnerability