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

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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/

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About:
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