As far I can see this is a Windows (7) only bug. I tested the same using Mac OSX 10.8.3 , but no crash.
Tested using LibreOffice 4.1.0 beta 1, Windows 7 x64
* Open Impress
* Click on the 'Area' button in the toolbar (located between the color selectors)
Going to Format > Area doesn't result in a crash. Therefore I mark it as an UI bug right now. Maybe this has to be changed later.
Hello Joren, Thank you for your bug report I canrepoduce this bug running Version: 18.104.22.168.beta1
Build ID: 5271b34bec742e190e2fe5a7dadb7334a705b54
on Windows 7 x64
This one is fixed, can not reproduce it anymore using libreoffice-4-1~2013-05-27_07.07.10_LibreOfficeDev_22.214.171.124.alpha1_Win_x86_archive.zip ( http://dev-builds.libreoffice.org/daily/libreoffice-4-1/Win-x86@6/ )
So, most probably a dupe of 65022
*** This bug has been marked as a duplicate of bug 65022 ***