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FreeType Multiple Vulnerabilities
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Secunia Advisory:
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SA30600
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Release Date:
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2008-06-11
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Popularity:
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4,861 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: | FreeType 2.x
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Binary Analysis:
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BA497 :: Available for 1 Credit 
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| CVE reference: | CVE-2008-1806
CVE-2008-1807
CVE-2008-1808
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Description:
Some vulnerabilities have been reported in FreeType, which potentially can be exploited by malicious people to compromise an application using the library.
1) An integer overflow error exists in the processing of PFB font files. This can be exploited to cause a heap-based buffer overflow via a PFB file containing a specially crafted "Private" dictionary table.
2) An error in the processing of PFB font files can be exploited to trigger the "free()" of memory areas that are not allocated on the heap.
3) An off-by-one error exists in the processing of PFB font files. This can be exploited to cause a one-byte heap-based buffer overflow via a specially crafted PFB file.
4) An off-by-one error exists in the implementation of the "SHC" instruction while processing TTF files. This can be exploited to cause a one-byte heap-based buffer overflow via a specially crafted TTF file.
Successful exploitation of the vulnerabilities may allow execution of arbitrary code.
The vulnerabilities are reported in version 2.3.5. Prior versions may also be affected.
Solution:
Update to version 2.3.6.
Provided and/or discovered by:
regenrecht, reported via iDefense
Original Advisory:
FreeType:
http://sourceforge.net/project/shownotes.php?release_id=605780
iDefense:
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=715
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=716
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=717
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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.
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