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(CVE-2018-20334) ASUSWRT Command Injection in start_apply. (CVE-2019-2722) Oracle VirtualBox e1000 Integer Underflow - Pwn2Own Next » #THE KMPLAYER ACCESS VIOLATION AT ADDRESS UPDATE#The vendor has acknowledged the issue and released an update to address it. The nUnitSize variable is from the subtitles content, so we can set this variable to a value smaller than 4, then the result of pos + nUnitSize - 4 is pretty small and pass the check, but the size when do the memmove is result of nUnitSize - 4, its so huge and crash the program.The pos variable is the current position of the project that initialized by the size of the segment.It checks if the new position after the appending is larger than the size of the object, but the size of the new data is our choice then we can pick a number that overflow the expression pos + nUnitSize - 4 and bypass the buffer_size check: When you see this error format not supported while playing a video on any player that means the required codec to play such format is missing and you need to. ![]() Int _thiscall CPGSSubFile :: ParseFile ( _BYTE * this, LPCWSTR lpFileName ) The program will try to parse the subtitles file with the parser of every subtitles type which is supported. This DLL has several export functions, one of them is OpenSubtitleByFile, this function detects the subtitles type by guessing from the file extension, then by its content. When a subtitles file is open (manually or automatically), KMPlayer will use an API of this module to detect the type of the subtitles and process it with a corresponding function. There is a DLL named utils.dll in the installation folder of the KMPlayer. access violation at address 0411867d in module ‘genml.dll’.read of address 00000028. Event viewer always says theyre 0xc0000005 errors, and the faulting module for New Vegas is nvac.dll (New Vegas Anti-Crash, the. sup files, KMPlayer doesn’t check the Object size correctly, which leads to integer overflow then to memory out-of-bound read. ![]() #THE KMPLAYER ACCESS VIOLATION AT ADDRESS WINDOWS#K-Multimedia Player (KMPlayer) is a media player for Windows which can play a large number of formats including VCD, DVD, AVI, MKV, Ogg, OGM, 3GP, MPEG-1/2/4, AAC, WMA 7, 8, WMV, RealMedia, FLV and QuickTime. ![]()
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