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bugtraq logo Bugtraq mailing list archives

Re: GNU Sharutils buffer overflow vulnerability.
From: Didier Arenzana <darenzana () yahoo fr>
Date: Wed, 7 Apr 2004 10:03:01 +0200 (CEST)

 --- Shaun Colley <shaunige () yahoo co uk> a écrit : 
Product:      GNU Sharutils -

  Hello,
  I've juste read your advisory, and I'd like to advise your patch is
incomplete:

[...] 
       case 'o':
-       strcpy (output_base_name, optarg);
+       strncpy (output_base_name, optarg,
sizeof(output_base_name));

You must add 

     output_base_name[sizeof(output_base_name)]='\0' ; 

here, otherwize your string will not be null-termminated when optarg is too
long.

Regards,
Didier.



        

        
                
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