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Lynx "HTrjis()" NNTP Buffer Overflow Vulnerability
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Secunia Advisory:
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SA17216
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Release Date:
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2005-10-17
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Popularity:
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10,570 views
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Critical:
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Highly critical
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Impact:
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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: | Lynx 2.x
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| | CVE reference: | CVE-2005-3120
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Description:
Ulf Harnhammar has reported a vulnerability in Lynx, which can be exploited by malicious people to compromise a user's system.
The vulnerability is caused due to a boundary error in the "HTrjis()" function in the handling of article headers sent from NNTP (Network News Transfer Protocol) servers. This can be exploited to cause a stack-based buffer overflow by e.g. tricking a user into visiting a malicious web site which redirects to a malicious NNTP server via the "nntp:" URI handler.
Successful exploitation allows execution of arbitrary code.
The vulnerability has been reported in versions 2.8.3, 2.8.4, 2.8.5, and 2.8.6dev.13. Other versions may also be affected.
Solution:
The vulnerability has been fixed in version 2.8.6dev.14.
Provided and/or discovered by:
Ulf Harnhammar
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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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7th Oct, 2008
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