Bug Id
6621380

Product
Solaris 8 Operating System
Solaris 9 Operating System
Solaris 10 Operating System

Date of Resolved Release
03-Apr-2008

A Security Vulnerability in the Handling of Self Encapsulated IP Packets (see details below)

1. Impact

A Security vulnerability in Solaris, related to the handling of self encapsulated IP packets,  may allow a remote privileged user to panic the system. The ability to panic the system is a type of Denial of Service (DoS).

2. Contributing Factors

This issue can occur in the following releases:

SPARC Platform

• Solaris 8 without patch 116965-32
  
• Solaris 9 without patch 114344-34
  
• Solaris 10 without patch 127111-11

x86 Platform

• Solaris 8 without patch 116966-31
  
• Solaris 9 without patch 119435-22
  
• Solaris 10 without patch 127112-11

3. Symptoms

If the described issue occurs, the system will panic with a stack trace similar to the following:

    ip:ip_rput_local_options+0x2cc(, 0x600107fca40, 0x6000ccbcab8,
    0x6002b4acde8)
    ip:ip_options_cksum+0x8c(0x6000bcac7f8, 0x600107fca40, 0x6000ccbcab8,
    0x6002b4acde8)
    ip:ip_proto_input+0x8c(0x6000bcac7f8, 0x6000b0caa00, 0x6000ccbcab8,
    0x6002b4acde8, 0x600042009a8)
    ip:ip_proto_input+0xa34(, 0x6000b0caa00, 0x6000ccbcaa4, 0x6002b4acde8,
    0x600042009a8)
    ip:ip_fanout_proto_again+0x3ec(, 0x600042009a8, 0x600042009a8,
    0x6002b4acde8)
    ip:ip_proto_input+0xbf0(, 0x600107fca40, 0x6000ccbca94, 0x6002b4acde8,
    0x600042009a8)
    ip:ip_input+0x868(0x600042009a8, 0x600093b2040, 0x600107fca40, , ,
    0xffffffff)
    dls:soft_ring_drain+0x7c(0x60012a17d80, 0xffffffffffffffff, , , , 0x0)
    dls:soft_ring_worker+0x64(0x60012a17d80, 0x0)
    unix:thread_start+0x4()

4. Workaround

To work around the described issue, firewalls may be used to block self encapsulated IP packets.

5. Resolution

This issue is addressed in the following releases:

SPARC Platform

• Solaris 8 with patch 116965-32 or later
  
• Solaris 9 with patch 114344-34 or later
  
• Solaris 10 with patch 127111-11 or later

x86 Platform

• Solaris 8 with patch 116966-31 or later
  
• Solaris 9 with patch 119435-22 or later
  
• Solaris 10 with patch 127112-11 or later
  

For more information on Security Sun Alerts, see 1009886.1.

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 2000-2008 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, CA 95054 U.S.A. All rights reserved.

References

127111-11
127112-11
114344-34
119435-22
116965-32
116966-31





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