RT RT/krbdev.mit.edu: Ticket #6434 krb5_cc_resolve() will crash if a null name param is provided Signed in as guest.
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 The Basics  
Id
6434
Status
resolved
Worked
0 min
Priority
0/0
Queue
krb5
 

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Component
  • krb5-libs
Version_reported
  • 1.6.4
Version_Fixed
  • 1.8
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Created: Wed Mar 25 23:48:22 2009
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Last Contact: Fri Mar 27 13:23:57 2009
Due: Not set
Updated: Mon Jan 4 23:38:56 2010 by tlyu
 

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 jaltman@mit.edu
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History   Display mode: [Brief headers] [Full headers]
      Wed Mar 25 23:48:22 2009  jaltman - Ticket created    
      
Subject: krb5_cc_resolve() will crash if a null name param is provided

Proposed fix:

Index: ccache/ccbase.c
===================================================================
--- ccache/ccbase.c     (revision 22114)
+++ ccache/ccbase.c     (working copy)
@@ -181,7 +181,7 @@
     const krb5_cc_ops *ops;

     pfx = NULL;
-    cp = strchr (name, ':');
+    cp = name ? strchr (name, ':') : NULL;
     if (!cp) {
        if (krb5_cc_dfl_ops)
            return (*krb5_cc_dfl_ops->resolve)(context, cache, name);

Download (untitled) 443b
      Wed Mar 25 23:48:33 2009  jaltman - Component krb5-libs added    
      Wed Mar 25 23:48:33 2009  jaltman - Version_reported 1.6.4 added    
      Fri Mar 27 13:23:57 2009  ghudson - Status changed from open to resolved    
      Fri Mar 27 13:23:57 2009  ghudson - Correspondence added    
      
A null check was added in r20560 (July 2008) and should be present in
the 1.7 release.

Download (untitled) 86b
      Mon Jan  4 23:38:56 2010  tlyu - Version_Fixed 1.8 added