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Lynx "HTrjis()" NNTP Buffer Overflow Vulnerability
Secunia Advisory: SA17216
Release Date: 2005-10-17
Popularity: 11,577 views

Critical:
Highly critical
Impact: System access
Where: From remote
Solution Status: Vendor Patch

Software:Lynx 2.x

Secunia CVSS-2 Score: Available in Secunia business solutions

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Advisory Content (Page 1 of 3)[ 1 ] [ 2 ] [ 3 ]

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.

Change Page:
[ 1 ] [ 2 ] [ 3 ]



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