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Insecure Library Loading
Moderately critical

xpdf Multiple Integer Overflow Vulnerabilities

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Release Date:  2006-01-05    Last Update:  2006-02-09    Views:  16,723

Secunia Advisory SA18303

Where:

From remote

Impact:

DoS, System access

Solution Status:

Vendor Patch

Software:

CVE Reference(s):

Description


Chris Evans has reported some vulnerabilities in xpdf, which can be exploited by malicious people to cause a DoS (Denial of Service) and potentially to compromise a user's system.

1) An integer overflow error exists in "Stream.cc:StreamPredictor::StreamPredictor()" when calculating buffer sizes for memory allocation. This can potentially be exploited to overflow the allocated heap memory.

This may be related to #3 in:
SA17897

2) An integer overflow error exists in "Stream.cc::CCITTFaxStream::CCITTFaxStream()" when calculating buffer sizes for memory allocation. This can potentially be exploited to overflow the allocated heap memory.

3) An infinite loop error exists in "Stream.cc::DCTStream::readMarker()" when handling certain malformed input files. This can potentially be exploited to cause a DoS.

4) Missing validation of input parameters in "Stream.cc:DCTStream::readHuffmanTables()" and "Stream.cc:DCTStream::readScanInfo()" can cause out-of-bounds memory access. This can potentially be exploited to overwrite certain memory.

5) Some potential integer overflow error exists in "JBIG2Stream.cc".

The vulnerability affects version 3.01. Other versions may also be affected.

Note: A NULL pointer dereferencing error has also been reported.


Solution:
Apply xpdf-3.01pl2.patch.

Further details available to Secunia VIM customers

Provided and/or discovered by:
Chris Evans

Original Advisory:
Chris Evans:
http://scary.beasts.org/security/b0dfca810501f2da/CESA-2005-003.txt

Gentoo:
http://bugs.gentoo.org/show_bug.cgi?id=117481

KDE:
http://www.kde.org/info/security/advisory-20051207-2.txt

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: xpdf Multiple Integer Overflow Vulnerabilities

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