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mIRC Hostname Buffer Overflow Vulnerability
Secunia Advisory: SA9906
Release Date: 2003-10-01
Last Update: 2003-10-13
Popularity: 10,023 views

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

Software:mIRC 6.x

Secunia CVSS-2 Score: Available in Secunia business solutions

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

Description:
A vulnerability has been reported in mIRC, which can be exploited by malicious servers to compromise a user's system.

The problem is that the response for a "USERHOST" request may only be 110 characters long. If an IRC server sends a longer response to the client, it causes a buffer overflow, which may allow execution of arbitrary code.

A sample exploit has been released.

This has been reported to affect version 6.01 to 6.1.

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



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