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UPX 3.92 released - found a bug! (Announce)

posted by Wengier(R) E-mail, 10.01.2017, 04:23

> I just found a bug in new UPX 3.92.
> When I compressed the library MFC120.DLL (regardless of used compression
> level or executable version dos/win32) the result was that application
> which use this library failed to load with initialization error 0xc0000005.
> If the library is decomressed and repacked by previous UPX 3.91 (regardless
> of used compression level or executable version dos/win32) it always works
> fine.
> So be carefull and keep the old version handy!
>
> UPDATE: and it's not the only one, IDRVDLL.DLL, Idrvdll32e.dll from intel
> BIOS tools also gets crippled so the bug may affect much more Win32 PE
> files!

This is expected. See the changelog:

Changes in 3.92 (11 Dec 2016):
* UPX has moved to GitHub - the new home page is https://upx.github.io
* IMPORTANT: all PE formats: internal changes: reunited the diverged source files - please report all regressions into the bug tracker and try UPX 3.91 in case of problems.

Wengier

 

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