Execution of data section

francois91

New member
I'm a M740 user and use Videoredo for editing the crid.

Two points :
- One have to allow Videoredo to execute data. This is a hole in security (However, it does not happen on another pC...)
- When I select a record in the list of M740 files, a double-click crash VideoRedo, while using the "Open" Button works fine
 
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Danr

Administrator
Staff member
One have to allow Videoredo to execute data. This is a hole in security (However, it does not happen on another pC...)
Don't understand this comment. Can you give us more details?
When I select a record in the list of M740 files, a double-click crash VideoRedo, while using the "Open" Button works fine
Thought we could duplicate it, but now it appears that double-click is working OK.

Please do us a favor. Create a .zip file of all your .crid files and email the .zip to us at support@videoredo.com

Thanks.
 
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francois91

New member
I'm running on Athlon64, which implement Hardware Data Execution Prevention (DEP). This feature is exploited since XP SP2.

<<Extract from Microsoft site >>

Hardware-enforced DEP
Hardware-enforced DEP marks all memory locations in a process as non-executable unless the location explicitly contains executable code. A class of attacks exists that tries to insert and run code from non-executable memory locations. DEP helps prevent these attacks by intercepting them and raising an exception.

Hardware-enforced DEP relies on processor hardware to mark memory with an attribute that indicates that code should not be executed from that memory. DEP functions on a per-virtual memory page basis, and DEP typically changes a bit in the page table entry (PTE) to mark the memory page.

Processor architecture determines how DEP is implemented in hardware and how DEP marks the virtual memory page. However, processors that support hardware-enforced DEP can raise an exception when code is executed from a page that is marked with the appropriate attribute set.

Advanced Micro Devices (AMD) and Intel have defined and shipped Windows-compatible architectures that are compatible with DEP.

Beginning with Windows XP SP2, the 32-bit version of Windows uses one of the following:
• The no-execute page-protection (NX) processor feature as defined by AMD.
• The Execute Disable Bit (XD) feature as defined by Intel.

Although this can be a consequence of my configuration, I don't know, Windows complains about DEP when running VideoRedo. I have to confirm that I exclude VideoRedo from DEP.

Hope it helps....

PS. VideRedo is a great software.... :wink:
 
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