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Insecure Library Loading

Secunia Advisory SA28833

TinTin++ / WinTin++ Multiple Vulnerabilities
Secunia Advisory SA28833
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Release Date 2008-02-07
Last Update 2008-02-13
   
Popularity 4,986 views
Comments 0 comments

Criticality level Highly criticalHighly critical
Impact Manipulation of data
DoS
System access
Where From remote
Authentication level Available in Customer Area
   
Report reliability Available in Customer Area
Solution Status Unpatched
   
Systems affected Available in Customer Area
Approve distribution Available in Customer Area
Remediation status Secunia VIM
   
Software:
TinTin++ 1.x
WinTin++ 1.x

Secunia CVSS Score Available in Customer Area
CVE Reference(s) CVE-2008-0671 CVSS available in Customer Area
CVE-2008-0672 CVSS available in Customer Area
CVE-2008-0673 CVSS available in Customer Area
  

Description

Luigi Auriemma has discovered some vulnerabilities and a weakness in TinTin++ and WinTin++, which can be exploited by malicious people to cause a DoS (Denial of Service), manipulate data, or to compromise a user's system.

1) A boundary error exists within the "add_line_buffer()" function, which can be exploited to cause a stack-based buffer overflow via a specially crafted chat message.

Successful exploitation allows execution of arbitrary code.

2) The problem is that files that are received from remote clients are created insecurely without user interaction. This can be exploited to overwrite arbitrary files in the user's home directory with an empty file.

3) A null-pointer dereference error can be exploited to crash the client via a specially crafted chat message.

Successful exploitation of all vulnerabilities require that the client has initialised the chat functionality.

The vulnerabilities and weakness are confirmed in TinTin++ 1.97.9 and also reported in WinTin++ 1.97.9. Other versions may also be affected.


Solution
Do not use the chat functionality.

Provided and/or discovered by
Luigi Auriemma

Changelog
Further details available in Customer Area

Original Advisory
http://aluigi.altervista.org/adv/rintintin-adv.txt

Deep Links
Links available in Customer Area


Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: TinTin++ / WinTin++ Multiple Vulnerabilities
 
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