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Fetchmail Headerless Message Denial of Service Vulnerability
Secunia Advisory: SA17891
Release Date: 2005-12-19
Last Update: 2005-12-21
Popularity: 9,973 views

Critical:
Not critical
Impact: DoS
Where: From remote
Solution Status: Vendor Patch

Software:Fetchmail 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 Fetchmail, which can be exploited by malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to a null pointer dereferencing error when handling a message without email headers. This can be exploited to crash Fetchmail when the upstream mail server sends a message without headers.

Successful exploitation requires that Fetchmail is configured for multidrop mode and retrieves emails from a malicious upstream mail server.

The vulnerability has been reported in versions 6.2.5.4 and 6.3.0. Prior versions may also be affected.

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



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