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libvorbis Multiple Vulnerabilities
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Secunia Advisory:
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SA26232
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Release Date:
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2007-07-27
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Last Update:
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2007-09-20
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Popularity:
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8,153 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: | libvorbis 1.x
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| CVE reference: | CVE-2007-3106
CVE-2007-4029
CVE-2007-4065
CVE-2007-4066
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Description:
David Thiel has reported some vulnerabilities in libvorbis, which can be exploited by malicious people to cause a DoS (Denial of Service) and potentially compromise an application using the library.
1) A boundary error exists in the way the "_01inverse()" function in res.c processes "blocksize_0" and "blocksize_1" values, which can be exploited to cause a heap overwrite.
2) A boundary error exists in the way the "vorbis_info_clear()" function in info.c processes invalid mapping types, which can be exploited to trigger a call to a value outside the dispatch table.
3) Invalid "blocksize" values passed to the "vorbis_dsp_clear()" function in block.c result in an invalid memory access, which can be exploited to cause a DoS.
Note: Other errors, where some may have a security impact, were also reported.
The vulnerabilities are reported in version 1.1.2. Prior versions may also be affected.
Solution:
Update to version 1.2.0.
http://downloads.xiph.org/releases/vorbis/libvorbis-1.2.0.tar.gz
Provided and/or discovered by:
Discovered by David Thiel, iSEC Partners.
Changelog:
2007-07-27: Added CVE reference.
2007-09-20: Updated "Description" section to include note about other errors. Added CVE references.
Original Advisory:
http://www.isecpartners.com/advisories/2007-003-libvorbis.txt
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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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