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TFTP Server SP Long Filename Buffer Overflow Vulnerability

Secunia Advisory: SA29508  
Release Date: 2008-03-27
Last Update: 2008-05-09

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

Software:TFTP Server SP 1.x

CVE reference:CVE-2008-1611 (Secunia mirror)

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Description:
Mati Aharoni has discovered a vulnerability in TFTP Server SP, which can be exploited by malicious people to cause a DoS (Denial of Service) or compromise a vulnerable system.

The vulnerability is caused due to a boundary error in the handling of filenames and can be exploited to cause a stack-based buffer overflow via a read or write request with an overly long filename.

Successful exploitation allows execution of arbitrary code.

The vulnerability is confirmed in the Windows version of TFTP Server SP version 1.4. Other versions may also be affected.

Solution:
Update to version 1.5.
http://sourceforge.net/project/showfiles.php?group_id=162512

Provided and/or discovered by:
Mati Aharoni

Changelog:
2008-04-11: Added CVE reference.
2008-05-09: Updated "Solution" section.

Original Advisory:
TFTP Server:
http://sourceforge.net/project/showno...release_id=595400&group_id=162512

http://www.offensive-security.com/0day/sourceforge-tftpd.py.txt



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.

1 Related Secunia Security Advisories

1. TFTP Server SP Long Error Message Buffer Overflow


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