dfc00ffd48
22 new exploits Windows NDProxy - Privilege Escalation XP SP3 x86 and 2003 SP2 x86 (MS14-002) Windows XP SP3 x86 and 2003 SP2 x86 - NDProxy Privilege Escalation (MS14-002) exim <= 4.84-3 - Local Root Exploit Exim <= 4.84-3 - Local Root Exploit CoolPlayer (Standalone) build 2.19 - .m3u Stack Overflow OS X / iOS Suid Binary Logic Error Kernel Code Execution Multiple CCTV-DVR Vendors - Remote Code Execution MiCollab 7.0 - SQL Injection Vulnerability Comodo Antivirus Forwards Emulated API Calls to the Real API During Scans Avira - Heap Underflow Parsing PE Section Headers Comodo - PackMan Unpacker Insufficient Parameter Validation Comodo - LZMA Decoder Heap Overflow via Insufficient Parameter Checks Comodo - Integer Overlow Leading to Heap Overflow Parsing Composite Documents Wireshark - dissect_ber_integer Static Out-of-Bounds Write Comodo - Integer Overflow Leading to Heap Overflow in Win32 Emulation Comodo Antivirus - Heap Overflow in LZX Decompression OS X Kernel - Code Execution Due to Lack of Bounds Checking in AppleUSBPipe::Abort Adobe Flash - Shape Rendering Crash Adobe Flash - Zlib Codec Heap Overflow Adobe Flash - Sprite Creation Use-After-Free Adobe Flash - Uninitialized Stack Parameter Access in AsBroadcaster.broadcastMessage UaF Fix Adobe Flash - Uninitialized Stack Parameter Access in Object.unwatch UaF Fix Adobe Flash - Uninitialized Stack Parameter Access in MovieClip.swapDepths UaF Fix OS X Kernel - AppleKeyStore Use-After-Free OS X Kernel - Unchecked Array Index Used to Read Object Pointer Then Call Virtual Method in nVidia Geforce Driver OS X Kernel Use-After-Free and Double Delete Due to Incorrect Locking in Intel GPU Driver
16 lines
943 B
Text
Executable file
16 lines
943 B
Text
Executable file
Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=764
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Packman is an obscure opensource executable packer that Comodo Antivirus attempts to unpack during scanning. The code is available online here:
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http://packmanpacker.sourceforge.net/
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If the compression method is set to algorithm 1, compression parameters are read directly from the input executable without validation. Fuzzing this unpacker revealed a variety of crashes due to this, such as causing pointer arithmetic in CAEPACKManUnpack::DoUnpack_With_NormalPack to move pksDeCodeBuffer.ptr to an arbitrary address, which allows an attacker to free() an arbitrary pointer.
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This issue is obviously exploitable to execute code as NT AUTHORITY\SYSTEM.
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The attached testcase will attempt to free() an invalid pointer to demonstrate this.
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Proof of Concept:
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https://github.com/offensive-security/exploit-database-bin-sploits/raw/master/sploits/39601.zip
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