A local or remote unprivileged user may be able to cause the Sun Java System Directory Server 5.2 to become unresponsive or hang. This is a Denial of Service (DoS) due to a memory leak in the Network Security Services (NSS) software.

NSS is an open source project which adds support for SSL, S/MIME, and other Internet security standards to the Sun Java Enterprise System. Further information about NSS can be found at:

• http://www.mozilla.org/projects/security/pki/nss/

This issue is also described in CVE-2006-3127 at:

• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3127

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):

PatchZIP (Compressed Archive) versions:

• Sun Java System 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

Note: Sun ONE Directory Server 5.1 and earlier versions are not affected by this issue.

To determine the version of Directory Server running on a system, the following command can be used:

    $ cd <installation directory>/bin/slapd/server[/64]
    $ ./ns-slapd -V -D <instance-directory>

Should the described issue occur, the Directory Server will become unresponsive.

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.

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

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

• Updated Resolution section

• State: Resolved
• Updated Resolution section

This solution has no attachment