Description: Two weaknesses have been reported in Adobe Reader and Adobe Acrobat, which can be exploited by malicious people to enumerate files on a user's system or crash the application.
1) An error in the "LoadFile()" method makes it possible to determine if a queried local file exists via e.g. a malicious web site invoking the Internet Explorer ActiveX control directly.
2) An error within the processing of certain PDF documents can be exploited to crash the application via a PDF document containing a negative root page node "Count" value.
The weaknesses have been reported in versions 7.0 and prior for Windows.
Do you have this product installed on your home computer? Scan using the free Personal Software Inspector. Check if a vulnerable version is installed on computers in your corporate network, using the Network Software Inspector.
Provided and/or discovered by: 1) NISCC and Robert Fly.
2) Hongzhen Zhou, Fortinet.
Changelog: 2005-04-06: Added vendor links and information about second weakness.
2005-04-25: Added link to original advisory (Robert Fly).
2005-06-08: Added link to US-CERT vulnerability note.
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