A security vulnerability in the Sun N1 Grid Engine daemons may allow local unprivileged users to kill either the qmaster or execd process and shutdown the grid service, creating a Denial of Service (DoS) condition. In certain cases, buffer overflows may be exploited by unprivileged local users to gain elevated privileges.

This issue can occur in the following releases:

SPARC Platform

• Sun Grid Engine 5.3 (32-bit Solaris)
• Sun Grid Engine 5.3 (64-bit Solaris)
• Sun Grid Engine 5.3 (32-bit Solaris) NON-Solaris Package format
• Sun Grid Engine 5.3 (64-bit Solaris) NON-Solaris Package format
• N1 Grid Engine 6.0 (32-bit Solaris) without patch 123037-01
• N1 Grid Engine 6.0 (64-bit Solaris) without patch 123038-01
• N1 Grid Engine 6.0 (32-bit Solaris) NON-Solaris Package format without patch 123041-01
• N1 Grid Engine 6.0 (64-bit Solaris) NON-Solaris Package format without patch 123042-01

x86 Platform

• Sun Grid Engine 5.3
• Sun Grid Engine 5.3 NON-Solaris Package format
• N1 Grid Engine 6.0 without patch 123039-01
• N1 Grid Engine 6.0 NON-Solaris Package format without patch 123043-01
• N1 Grid Engine 6.0 (x64) without patch 123040-01
• N1 Grid Engine 6.0 (x64) NON-Solaris Package format without patch 123044-01

Linux

• Sun Grid Engine 5.3
• N1 Grid Engine 6.0 without patch 123045-01
• N1 Grid Engine 6.0 (x64) without patch 123046-01

Windows

• N1 Grid Engine 6.0 without patch 123052-01

HP-UX

• N1 Grid Engine 6.0 without patch 123050-01

AIX

• N1 Grid Engine 6.0 (for AIX 4.3) without patch 123047-01
• N1 Grid Engine 6.0 (for AIX 5.1) without patch 123048-01

Mac OS

• N1 Grid Engine 6.0 without patch 123049-01

IRIX

• N1 Grid Engine 6.0 (for IRIX 6.5) without patch 123051-01

Should the described exploit occur, the 'qmaster' or 'execd' process is shut down and a core file will be created.

To verify that your 'qmaster' or 'execd' process is not up and running, search in the process table with the 'ps' command for the process name "sge_qmaster" or "sge_execd". The following examples show a running qmaster:

On Mac OS:

    $ ps ax | grep sge_qmaster
    526  ??  S     12:44.97 /gridware/sge/bin/darwin/sge_qmaster

all other platforms (including Windows, when using Windows Services for UNIX):

    $ ps -ef | grep sge_qmaster
    sgeadmin 13001 1 0 Apr 24 ? 19:17 /gridware/sge/bin/sol-sparc64/sge_qmaster

If no 'qmaster' or 'execd' process was found in the process table the cluster may be affeced by this issue.

There is no workaround for this issue. Please see the Resolution section below.

This issue is addressed in the following releases:

SPARC Platform

• N1 Grid Engine 6.0 (32-bit Solaris) with patch 123037-01 or later
• N1 Grid Engine 6.0 (64-bit Solaris) with patch 123038-01 or later
• N1 Grid Engine 6.0 (32-bit Solaris) NON-Solaris Package format with patch 123041-01 or later
• N1 Grid Engine 6.0 (64-bit Solaris) NON-Solaris Package format with patch 123042-01 or later

x86 Platform

• N1 Grid Engine 6.0 with patch 123039-01 or later
• N1 Grid Engine 6.0 NON-Solaris Package format with patch 123043-01 or later
• N1 Grid Engine 6.0 (x64) with patch 123040-01 or later
• N1 Grid Engine 6.0 (x64) NON-Solaris Package format with patch 123044-01 or later

Linux

• N1 Grid Engine 6.0 with patch 123045-01 or later
• N1 Grid Engine 6.0 (x64) with patch 123046-01 or later

Windows

• N1 Grid Engine 6.0 with patch 123052-01 or later

HP-UX

• N1 Grid Engine 6.0 with patch 123050-01 or later

AIX

• N1 Grid Engine 6.0 (for AIX 4.3) with patch 123047-01 or later
• N1 Grid Engine 6.0 (for AIX 5.1) with patch 123048-01 or later

Mac OS

• N1 Grid Engine 6.0 with patch 123049-01 or later

IRIX

• N1 Grid Engine 6.0 (for IRIX 6.5) with patch 123051-01 or later

Note: Sun Grid Engine 5.3 will require an upgrade to N1 Grid Engine 6.0 with the appropriate patches to resolve this issue.

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