RT RT/krbdev.mit.edu: Ticket #8342 Check for null kadm5 policy name [CVE-2015-8630] Signed in as guest.
[Logout]

[Home] [Search] [Configuration]

[Display] [History] [Basics] [Dates] [People] [Links] [Jumbo]

 
 

 The Basics  
Id
8342
Status
resolved
Worked
0 min
Priority
0/0
Queue
krb5
 

 Keyword Selections  
Component
Tags
Version_reported
Version_Fixed
  • 1.14.1
  • 1.13.4
Target_Version
  • 1.14-next
  • 1.13-next
 

 Relationships  
Depends on:
Depended on by:
Parents:
Children:

Refers to:
Referred to by:
 
 Dates  
Created: Wed Jan 27 15:59:26 2016
Starts: Not set
Started: Wed Jan 27 15:59:26 2016
Last Contact: Mon Feb 8 18:38:09 2016
Due: Not set
Updated: Mon Feb 8 18:38:09 2016 by tlyu
 

 People  
Owner
 ghudson
Requestors
 ghudson@mit.edu
Cc
 
AdminCc
 
 

 More about Greg Hudson  
Comments about this user:
No comment entered about this user
This user's 25 highest priority tickets:
 

History   Display mode: [Brief headers] [Full headers]
      Wed Jan 27 15:59:26 2016  ghudson - Ticket created    
     
From: ghudson@mit.edu
Subject: git commit


Check for null kadm5 policy name [CVE-2015-8630]

In kadm5_create_principal_3() and kadm5_modify_principal(), check for
entry->policy being null when KADM5_POLICY is included in the mask.

CVE-2015-8630:

In MIT krb5 1.12 and later, an authenticated attacker with permission
to modify a principal entry can cause kadmind to dereference a null
pointer by supplying a null policy value but including KADM5_POLICY in
the mask.

    CVSSv2 Vector: AV:N/AC:H/Au:S/C:N/I:N/A:C/E:POC/RL:OF/RC:C

https://github.com/krb5/krb5/commit/b863de7fbf080b15e347a736fdda0a82d42f4f6b
Author: Greg Hudson <ghudson@mit.edu>
Commit: b863de7fbf080b15e347a736fdda0a82d42f4f6b
Branch: master
 src/lib/kadm5/srv/svr_principal.c |   12 ++++++++----
 1 files changed, 8 insertions(+), 4 deletions(-)


Download (untitled) 774b
      Wed Jan 27 15:59:26 2016  ghudson - Requestor ghudson@mit.edu added    
      Wed Jan 27 15:59:26 2016  ghudson - Status changed from new to review    
      Wed Jan 27 15:59:26 2016  ghudson - Tags pullup added    
      Wed Jan 27 15:59:27 2016  ghudson - Target_Version 1.13-next added    
      Wed Jan 27 16:00:53 2016  ghudson - Target_Version 1.14-next added    
      Mon Feb  8 17:44:23 2016  tlyu - Version_Fixed 1.14.1 added    
      Mon Feb  8 17:44:23 2016  tlyu - Correspondence added    
     
From: tlyu@mit.edu
Subject: git commit


Check for null kadm5 policy name [CVE-2015-8630]

In kadm5_create_principal_3() and kadm5_modify_principal(), check for
entry->policy being null when KADM5_POLICY is included in the mask.

CVE-2015-8630:

In MIT krb5 1.12 and later, an authenticated attacker with permission
to modify a principal entry can cause kadmind to dereference a null
pointer by supplying a null policy value but including KADM5_POLICY in
the mask.

    CVSSv2 Vector: AV:N/AC:H/Au:S/C:N/I:N/A:C/E:POC/RL:OF/RC:C

(cherry picked from commit b863de7fbf080b15e347a736fdda0a82d42f4f6b)

https://github.com/krb5/krb5/commit/46ed05100ed8b0a82e047089cec94147ff471fb1
Author: Greg Hudson <ghudson@mit.edu>
Committer: Tom Yu <tlyu@mit.edu>
Commit: 46ed05100ed8b0a82e047089cec94147ff471fb1
Branch: krb5-1.14
 src/lib/kadm5/srv/svr_principal.c |   12 ++++++++----
 1 files changed, 8 insertions(+), 4 deletions(-)


Download (untitled) 880b
      Mon Feb  8 18:38:09 2016  tlyu - Status changed from review to resolved    
      Mon Feb  8 18:38:09 2016  tlyu - Version_Fixed 1.13.4 added    
      Mon Feb  8 18:38:09 2016  tlyu - Keyword pullup deleted    
      Mon Feb  8 18:38:09 2016  tlyu - Correspondence added    
     
From: tlyu@mit.edu
Subject: git commit


Check for null kadm5 policy name [CVE-2015-8630]

In kadm5_create_principal_3() and kadm5_modify_principal(), check for
entry->policy being null when KADM5_POLICY is included in the mask.

CVE-2015-8630:

In MIT krb5 1.12 and later, an authenticated attacker with permission
to modify a principal entry can cause kadmind to dereference a null
pointer by supplying a null policy value but including KADM5_POLICY in
the mask.

    CVSSv2 Vector: AV:N/AC:H/Au:S/C:N/I:N/A:C/E:POC/RL:OF/RC:C

(cherry picked from commit b863de7fbf080b15e347a736fdda0a82d42f4f6b)

https://github.com/krb5/krb5/commit/f9056a68f46e0bd1e3be5a4ec5f44655460d0ac9
Author: Greg Hudson <ghudson@mit.edu>
Committer: Tom Yu <tlyu@mit.edu>
Commit: f9056a68f46e0bd1e3be5a4ec5f44655460d0ac9
Branch: krb5-1.13
 src/lib/kadm5/srv/svr_principal.c |   12 ++++++++----
 1 files changed, 8 insertions(+), 4 deletions(-)


Download (untitled) 880b