----------------------------------------------------------------------

2003: 2,700 advisories published
2004: 3,100 advisories published
2005: 4,600 advisories published
2006: 5,300 advisories published

How do you know which Secunia advisories are important to you?

The Secunia Vulnerability Intelligence Solutions allows you to filter
and structure all the information you need, so you can address issues
effectively.

Get a free trial of the Secunia Vulnerability Intelligence Solutions:
http://corporate.secunia.com/how_to_buy/38/vi/?ref=secadv

----------------------------------------------------------------------

TITLE:
Xpdf "Stream.cc" Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA27260

VERIFY ADVISORY:
http://secunia.com/advisories/27260/

CRITICAL:
Highly critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
Xpdf 3.x
http://secunia.com/product/4128/

DESCRIPTION:
Secunia Research has discovered some vulnerabilities in Xpdf, which
can be exploited by malicious people to compromise a user's system.

1) An array indexing error within the
"DCTStream::readProgressiveDataUnit()" method in xpdf/Stream.cc can
be exploited to corrupt memory via a specially crafted PDF file.

2) An integer overflow error within the "DCTStream::reset()" method
in xpdf/Stream.cc can be exploited to cause a heap-based buffer
overflow via a specially crafted PDF file.

3) A boundary error within the "CCITTFaxStream::lookChar()" method in
xpdf/Stream.cc can be exploited to cause a heap-based buffer overflow
by tricking a user into opening a PDF file containing a specially
crafted "CCITTFaxDecode" filter.

Successful exploitation allows execution of arbitrary code.

The vulnerabilities are confirmed in Xpdf 3.02 with
xpdf-3.02pl1.patch. Other versions may also be affected.

SOLUTION:
Do not open untrusted PDF files.

The vendor is reportedly working on a patch.

PROVIDED AND/OR DISCOVERED BY:
Alin Rad Pop, Secunia Research.

ORIGINAL ADVISORY:
Secunia Research:
http://secunia.com/secunia_research/2007-88/

----------------------------------------------------------------------

About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

----------------------------------------------------------------------