RT RT/krbdev.mit.edu: Ticket #7577 PKINIT null pointer deref [CVE-2013-1415] Signed in as guest.
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Id
7577
Status
resolved
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0 min
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krb5
 

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Version_reported
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  • 1.10.4
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  • 7570: (kaduk@MIT.EDU) PKINIT null pointer deref [CVE-2013-1415] [review]
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Created: Fri Feb 22 17:19:42 2013
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Started: Fri Feb 22 17:19:42 2013
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Updated: Fri Feb 22 17:24:44 2013 by tlyu
 

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History   Display mode: [Brief headers] [Full headers]
      Fri Feb 22 17:19:42 2013  tlyu - Ticket created    
     
From: tlyu@mit.edu
Subject: SVN Commit


PKINIT null pointer deref [CVE-2013-1415]

Don't dereference a null pointer when cleaning up.

The KDC plugin for PKINIT can dereference a null pointer when a
malformed packet causes processing to terminate early, leading to
a crash of the KDC process.  An attacker would need to have a valid
PKINIT certificate or have observed a successful PKINIT authentication,
or an unauthenticated attacker could execute the attack if anonymous
PKINIT is enabled.

CVSSv2 vector: AV:N/AC:M/Au:N/C:N/I:N/A:C/E:P/RL:O/RC:C

This is a minimal commit for pullup; style fixes in a followup.
[kaduk@mit.edu: reformat and edit commit message]

(cherry picked from commit c773d3c775e9b2d88bcdff5f8a8ba88d7ec4e8ed)

https://github.com/krb5/krb5/commit/dfa3dbb2f5c6d7d32d97c179f6c34e0dbb554111
Author: Xi Wang <xi.wang@gmail.com>
Committer: Tom Yu <tlyu@mit.edu>
Commit: dfa3dbb2f5c6d7d32d97c179f6c34e0dbb554111
Branch: krb5-1.10
 src/plugins/preauth/pkinit/pkinit_crypto_openssl.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)


Download (untitled) 1023b
      Fri Feb 22 17:19:42 2013  tlyu - Requestor tlyu@mit.edu added    
      Fri Feb 22 17:19:42 2013  tlyu - Status changed from new to resolved    
      Fri Feb 22 17:19:42 2013  tlyu - Version_Fixed 1.10.4 added    
      Fri Feb 22 17:24:44 2013  tlyu - Ticket 7577 RefersTo ticket 7570.