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             AUSCERT External Security Bulletin Redistribution

            ESB-2007.0196 -- [Win][RedHat][HP-UX][Solaris][AIX]
       The Directory Server ("ns-slapd") May Exit Unexpectedly When
                         Handling Certain Queries
                                4 May 2007

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:              Sun Java System Directory Server 5.1, 5.2
                      Sun Java System Directory Server Enterprise Edition
Publisher:            Sun Microsystems
Operating System:     AIX
                      HP-UX
                      Red Hat Enterprise Linux 2
                      Solaris
                      Windows
Impact:               Denial of Service
Access:               Remote/Unauthenticated
CVE Names:            CVE-2006-4175

Revision History:  May 4 2007: Resolution Section of Advisory Updated
                   March 26 2007: Initial Release

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Sun(sm) Alert Notification
     * Sun Alert ID: 102853
     * Synopsis: The Directory Server ("ns-slapd") May Exit Unexpectedly
       When Handling Certain Queries
     * Category: Security
     * Product: Sun Java System Directory Server 5.1 Service Pack 3, Sun
       Java System Directory Server 5.2, Sun Java System Directory Server
       Enterprise Edition
     * BugIDs: 6462036
     * Avoidance: Patch
     * State: Resolved
     * Date Released: 23-Mar-2007, 03-May-2007
     * Date Closed: 03-May-2007
     * Date Modified: 30-Apr-2007, 03-May-2007

1. Impact

   The Directory Server process "ns-slapd" may be terminated by a local
   or remote unprivileged user. This would cause a Denial of Service
   (DoS) to directory server services hosted on the affected system.

   Sun acknowledges with thanks, iDefense (http://www.idefense.com),
   for bringing this issue to our attention.

   This issue is also described in the following document:
     * http://labs.idefense.com/intelligence/vulnerabilities/display.p
       hp?id=491

2. Contributing Factors

   This issue can occur in the following releases for all platforms
   (Solaris 8, 9, and 10 on Solaris SPARC and Solaris x86 Platforms,
   Linux, Windows, HP-UX, and AIX):

   Native Package Versions:
     * Sun ONE Directory Server 5.2
     * Sun Java System Directory Server 5 2003Q4 (5.2patch1)
     * Sun Java System Directory Server 5 2004Q2 (5.2patch2)
     * Sun Java System Directory Server 5 2005Q1 (5.2patch3)
     * Sun Java System Directory Server 5 2005Q4 (5.2patch4)

   PatchZIP (Compressed Archive) versions:
     * Sun ONE Directory Server 5.1
     * Sun One Directory Server 5.2
     * Sun Java System Directory Server 5.2 Patch2
     * Sun Java System Directory Server 5.2 Patch3
     * Sun Java System Directory Server 5.2 Patch4

3. Symptoms

   If the described issue occurs, the Directory Server exits unexpectedly
   at the second request and a message similar to the following is logged
   for the first request:
    [10/Oct/2006:10:32:10 +0200] conn=0 op=0 msgId=1 - ber decoding error (op=C
ompare; params=DN,Type,Value)
    [10/Oct/2006:10:32:10 +0200] conn=0 op=0 msgId=1 - RESULT err=2 tag=111 nen
tries=0 etime=0 

4. Relief/Workaround

   There is no workaround for this issue.

   To recover from an unresponsive LDAP server instance, the following
   command can be used to restart the LDAP server process:

   On UNIX systems (usually as root user):
    # <server instance path>/start-slapd

   On Windows systems, open the "Services" panel and start the service
   manually.

5. Resolution

   This issue is addressed in Sun Java System Directory Server 5.2
   Patch5. To upgrade to Directory Server 5.2patch5, apply the following
   patches:

   For the Native Package Versions:
     * Solaris Sparc: 115614-27
     * Solaris x86: 115615-27
     * Linux: 118080-12
     * HP-UX : 121393-02
     * Windows: 121392-03

   For the PatchZIP (Compressed Archive) versions:
     * Solaris Sparc: 117665-04
     * Solaris x86: 117666-04
     * Linux: 117668-04
     * Windows: 117667-04
     * HP-UX: 117669-04
     * AIX: 117670-04

Change History

   30-Apr-2007:
     * Updated Resolution section

   03-May-2007:
     * State: Resolved
     * Updated Resolution section

   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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