RT RT/krbdev.mit.edu: Ticket #2684 callers of res_search don't handle large replies Signed in as guest.
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 The Basics  
Id
2684
Status
resolved
Worked
0 min
Priority
0/0
Queue
krb5
 

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Component
  • krb5-libs
Version_reported
  • 1.3
Version_Fixed
  • 1.4
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Depends on:
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Refers to:
  • 2710: (tlyu) use BIND 8 parsing API [resolved]
Referred to by:
 
 Dates  
Created: Fri Aug 27 16:58:29 2004
Starts: Not set
Started: Tue Sep 21 17:23:37 2004
Last Contact: Tue Sep 21 17:23:46 2004
Due: Not set
Updated: Mon Nov 15 22:22:19 2004 by tlyu
 

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 tlyu
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 nelson@thursby.com
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      Fri Aug 27 16:58:30 2004  nelson@thursby.com - Ticket created    
     
Date: Fri, 27 Aug 2004 14:26:18 -0500
From: Paul Nelson <nelson@thursby.com>
To: <krb5-bugs@mit.edu>
Subject: res_search in krb 1.3.x

I have a customer that has an Active Directory domain with 200 domain
controllers.  When the MIT Kerberos library uses res_search to look up
_kerberos._udp.XXX.COM, the result exceeds the 2048 buffer size.  The actual
size is around 9500 bytes.

This code is in src/lib/krb5/os/dnssrv.c





Download (untitled) 290b
      Tue Sep 21 17:23:37 2004  tlyu - Status changed from new to resolved    
      Tue Sep 21 17:23:38 2004  tlyu - Given to tlyu    
      Tue Sep 21 17:23:40 2004  tlyu - Correspondence added    
     
[nelson@thursby.com - Fri Aug 27 16:58:30 2004]:

> I have a customer that has an Active Directory domain with 200 domain
> controllers.  When the MIT Kerberos library uses res_search to look up
> _kerberos._udp.XXX.COM, the result exceeds the 2048 buffer size.  The
actual
> size is around 9500 bytes.
>
> This code is in src/lib/krb5/os/dnssrv.c

This should be fixed in code checked into the trunk, which implements a
DNS resolver glue layer.


Download (untitled) 446b
      Tue Sep 21 17:26:19 2004  tlyu - Subject changed from res_search in krb 1.3.x to callers of res_search don't handle large replies    
      Tue Sep 21 17:26:21 2004  tlyu - Component krb5-libs added    
      Tue Sep 21 17:26:24 2004  tlyu - Version_reported 1.3 added    
      Tue Sep 21 17:26:26 2004  tlyu - Ticket 2684 RefersTo ticket 2710.    
      Tue Sep 21 17:29:04 2004  nelson@thursby.com - Comments added    
     
Date: Tue, 21 Sep 2004 16:28:54 -0500
Subject: Re: [krbdev.mit.edu #2684] res_search in krb 1.3.x 
From: Paul Nelson <nelson@thursby.com>
To: <rt-comment@krbdev.mit.edu>
RT-Send-Cc: 

Thanks.


> From: Tom Yu via RT <rt-comment@krbdev.mit.edu>
> Reply-To: <rt-comment@krbdev.mit.edu>
> Date: Tue, 21 Sep 2004 17:23:45 -0400 (EDT)
> To: <nelson@thursby.com>
> Cc: <krb5-prs@mit.edu>
> Subject: [krbdev.mit.edu #2684] res_search in krb 1.3.x
>
> [nelson@thursby.com - Fri Aug 27 16:58:30 2004]:
>
>> I have a customer that has an Active Directory domain with 200 domain
>> controllers.  When the MIT Kerberos library uses res_search to look up
>> _kerberos._udp.XXX.COM, the result exceeds the 2048 buffer size.  The
> actual
>> size is around 9500 bytes.
>>
>> This code is in src/lib/krb5/os/dnssrv.c
>
> This should be fixed in code checked into the trunk, which implements a
> DNS resolver glue layer.
>




Download (untitled) 729b
      Mon Nov 15 22:22:19 2004  tlyu - Version_Fixed 1.4 added