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xpdf Multiple Integer Overflow Vulnerabilities
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Secunia Advisory:
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SA18303
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Release Date:
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2006-01-05
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Last Update:
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2006-02-09
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Popularity:
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10,004 views
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Critical:
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Moderately critical
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Impact:
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DoS
System access
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | Xpdf 2.x
Xpdf 3.x
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Subscribe:
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Instant alerts on relevant vulnerabilities 
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| CVE reference: | CVE-2005-3624
CVE-2005-3625
CVE-2005-3626
CVE-2005-3627
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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.
ftp://ftp.foolabs.com/pub/xpdf/
Provided and/or discovered by:
Chris Evans
Changelog:
2006-01-06: Updated advisory with information from Chris Evans.
2006-02-09: Updated "Solution" section.
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
Other References:
SA17897:
http://secunia.com/advisories/17897/
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About this Secunia Advisory
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
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