bufferoverflow posadis m5pre2

From: eSDee (eSDeeat_private)
Date: Wed Apr 17 2002 - 10:38:27 PDT

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    Netric Security Team - http://www.netric.org
    by eSDee
    
    Posadis m5pre2
    Type: Stackoverflow
    Priority: 2
    
    [01] Description
    [02] Proof of concept
    [03] Vendor response
    
    [01] Description
         Posadis is a DNS server for Unix and Windows, 
    available at 
         http://posadis.sourceforge.net.
    
         The m5pre2 was a security release for the 
    formatstring bug in the log_print 
         function, discovered by kkr 
    (http://online.securityfocus.com/bid/4378).
    
         The formatstring bug is fixed in m5pre2. However, 
    there exists an unchecked buffer in
         the same log_print function of m5pre2 and prior, 
    that can be exploited too. (remote ?)
    
    [02] Proof of concept
         A proof of concept exploit can be found at:
         www.netric.org/advisories/pos_expl2.c
         
         An example exploit for the formatstring bug in 
    m5pre1:
         www.netric.org/advisories/pos_expl.c
    
    [03] Vendor response
         The vendor is informed, but has not responded yet.
    



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