Buffer overflow in XnView 1.92.1 allows user-assisted remote attackers to execute arbitrary code via a long filename argument on the command line. NOTE: it is unclear whether there are common handler configurations in which this argument is controlled by an attacker.

XnSoft XnView Classic RWZ File Parsing Integer Underflow Remote Code Execution Vulnerability

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 for Windows Version 2.40 might allow attackers to cause a denial of service or possibly have unspecified other impact via a crafted .rle file, related to "Data from Faulting Address controls Branch Selection starting at GDI32!GenericEngineGetGlyphs+0x0000000000000133."

XnView Classic for Windows Version 2.40 might allow attackers to cause a denial of service or possibly have unspecified other impact via a crafted .rle file, related to "Data from Faulting Address controls Branch Selection starting at ntdll_77df0000!RtlpLowFragHeapFree+0x000000000000001f."

XnView Classic for Windows Version 2.40 allows attackers to execute arbitrary code or cause a denial of service via a crafted .rle file, related to a "User Mode Write AV starting at xnview+0x000000000022bf8d."

XnView Classic for Windows Version 2.40 allows attackers to execute arbitrary code or cause a denial of service via a crafted .rle file, related to a "User Mode Write AV near NULL starting at ntdll_77df0000!RtlEnterCriticalSection+0x0000000000000012."

XnView Classic for Windows Version 2.40 allows attackers to execute arbitrary code or cause a denial of service via a crafted .rle file, related to a "Stack Buffer Overrun (/GS Exception) starting at ntdll_77df0000!LdrpInitializeNode+0x000000000000015b."

XnView Classic for Windows Version 2.40 allows attackers to execute arbitrary code or cause a denial of service via a crafted .rle file, related to a "Data Execution Prevention Violation starting at Unknown Symbol @ 0x000000000c1b541c called from xnview+0x00000000003826ec."

XnView Classic for Windows Version 2.40 allows attackers to execute arbitrary code or cause a denial of service via a crafted .rle file, related to a "Read Access Violation on Control Flow starting at COMCTL32!CToolTipsMgr::s_ToolTipsWndProc+0x0000000000000032."

XnView Classic for Windows Version 2.40 allows attackers to execute arbitrary code or cause a denial of service via a crafted .rle file, related to a "Stack Buffer Overrun (/GS Exception) starting at ntdll_77df0000!RtlProcessFlsData+0x00000000000000b0."

XnView Classic for Windows Version 2.40 allows attackers to execute arbitrary code or cause a denial of service via a crafted .rle file, related to a "User Mode Write AV starting at ntdll_77df0000!RtlpCoalesceFreeBlocks+0x00000000000002e6."

XnView Classic for Windows Version 2.40 allows attackers to execute arbitrary code or cause a denial of service via a crafted .rle file, related to a "User Mode Write AV starting at xnview+0x000000000037a8aa."

XnView Classic for Windows Version 2.40 allows attackers to execute arbitrary code or cause a denial of service via a crafted .rle file, related to a "User Mode Write AV starting at msvcrt!_VEC_memzero+0x000000000000006a."

XnView Classic for Windows Version 2.40 allows attackers to execute arbitrary code or cause a denial of service via a crafted .rle file, related to a "User Mode Write AV near NULL starting at wow64!Wow64NotifyDebugger+0x000000000000001d."

XnView Classic for Windows Version 2.40 allows attackers to execute arbitrary code or cause a denial of service via a crafted .rle file, related to a "User Mode Write AV starting at ntdll_77df0000!RtlpWaitOnCriticalSection+0x0000000000000121."

XnView Classic for Windows Version 2.40 allows attackers to execute arbitrary code or cause a denial of service via a crafted .rle file, related to a "User Mode Write AV starting at ntdll_77df0000!RtlEnterCriticalSection+0x0000000000000012."

XnView Classic for Windows Version 2.40 allows attackers to execute arbitrary code or cause a denial of service via a crafted .rle file, related to a "Data Execution Prevention Violation starting at Unknown Symbol @ 0x00000000380a0500 called from ntdll_77df0000!LdrxCallInitRoutine+0x0000000000000016."

XnView Classic for Windows Version 2.40 allows attackers to execute arbitrary code or cause a denial of service via a crafted .rle file, related to a "Data Execution Prevention Violation starting at Unknown Symbol @ 0x000000002f32332f called from KERNELBASE!CompareStringW+0x0000000000000082."

XnView Classic for Windows Version 2.40 allows attackers to execute arbitrary code or cause a denial of service via a crafted .rle file, related to a "User Mode Write AV starting at ntdll_77df0000!RtlRbInsertNodeEx+0x000000000000002d."

XnView Classic for Windows Version 2.40 might allow attackers to cause a denial of service or possibly have unspecified other impact via a crafted .rle file, related to "Data from Faulting Address controls Branch Selection starting at ntdll_77df0000!LdrpFindLoadedDllByMapping+0x0000000000000046."