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                                   CERT-Renater

                        Note d'Information No. 2007/VULN412
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DATE                      : 02/11/2007

HARDWARE PLATFORM(S)      : /

OPERATING SYSTEM(S)       : Solaris 10.

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Sun(sm) Alert Notification
     * Sun Alert ID: 103101
     * Synopsis: Security Vulnerability in Solaris 10 SCTP INIT
       Processing
     * Category: Security
     * Product: Solaris 10 Operating System
     * BugIDs: 6596850
     * Avoidance: Patch
     * State: Resolved
     * Date Released: 26-Oct-2007
     * Date Closed: 26-Oct-2007
     * Date Modified:

1. Impact

   A security vulnerability in Solaris 10 SCTP INIT processing (see
   sctp(7P)) may allow a privileged remote user to panic the system,
   resulting in a Denial of Service (DoS).

2. Contributing Factors

   This issue can occur in the following releases:

   SPARC Platform
     * Solaris 10 without patch 127716-01

   x86 Platform
     * Solaris 10 without patch 127717-01

   Note: Solaris 8 and Solaris 9 are not impacted by this issue.

   This issue only affects systems with a "SCTP" socket in the "LISTEN"
   state. To determine if a host has such a socket, the following command
   may be used:
    $ netstat -an -P sctp | grep LISTEN

   If the system does not have any "SCTP" sockets in the "LISTEN" state,
   it is not vulnerable to this issue.

3. Symptoms

   Should the described issue occur, the system may panic with a stack
   trace similar to the following:
    ...
    sctp_lookup_faddr_nosctp
    sctp_secure_restart_check
    sctp_process_cookie
    ...

4. Relief/Workaround

   There is no workaround. Please see the "Resolution" section below.

5. Resolution

   This issue is addressed in the following releases:

   SPARC Platform
     * Solaris 10 with patch 127716-01 or later

   x86 Platform
     * Solaris 10 with patch 127717-01 or later

   This Sun Alert notification is being provided to you on an "AS IS"
   basis. This Sun Alert notification may contain information provided by
   third parties. The issues described in this Sun Alert notification may
   or may not impact your system(s). Sun makes no representations,
   warranties, or guarantees as to the information contained herein. ANY
   AND ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
   WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR
   NON-INFRINGEMENT, ARE HEREBY DISCLAIMED. BY ACCESSING THIS DOCUMENT
   YOU ACKNOWLEDGE THAT SUN SHALL IN NO EVENT BE LIABLE FOR ANY DIRECT,
   INDIRECT, INCIDENTAL, PUNITIVE, OR CONSEQUENTIAL DAMAGES THAT ARISE
   OUT OF YOUR USE OR FAILURE TO USE THE INFORMATION CONTAINED HEREIN.
   This Sun Alert notification contains Sun proprietary and confidential
   information. It is being provided to you pursuant to the provisions of
   your agreement to purchase services from Sun, or, if you do not have
   such an agreement, the Sun.com Terms of Use. This Sun Alert
   notification may only be used for the purposes contemplated by these
   agreements.

   Copyright 2000-2006 Sun Microsystems, Inc., 4150 Network Circle, Santa
   Clara, CA 95054 U.S.A. All rights reserved


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