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W3C Libwww Multipart MIME Data Handling Vulnerability
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Secunia Advisory:
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SA17119
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Release Date:
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2005-10-13
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Last Update:
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2005-11-10
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Popularity:
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6,789 views
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Critical:
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Less critical
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Impact:
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DoS
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Where:
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From remote
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Solution Status:
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Unpatched
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| Software: | W3C Libwww 5.x
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| CVE reference: | CVE-2005-3183
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Description:
Sam Varshavchik has reported a vulnerability in W3C Libwww, which potentially can be exploited by malicious people to cause a DoS (Denial of Service).
The vulnerability is caused due to a boundary error in the "HTBoundary_put_block()" function when processing multipart MIME data. This may be exploited to cause an illegal memory access past the end of the input buffer via specially crafted multipart MIME data.
Successful exploitation can potentially cause an application that uses Libwww to crash.
The vulnerability has been reported in version 5.4.0. Other versions may also be affected.
Solution:
Restrict use to process multipart MIME data from trusted sources only.
Some Linux vendors have issued fixes.
Provided and/or discovered by:
Sam Varshavchik
Changelog:
2005-11-10: Added CVE reference.
Original Advisory:
Red Hat Bugzilla:
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=159597
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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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