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                   VMware Security Advisory

Advisory ID:       VMSA-2009-0001
Synopsis:          ESX patches address an issue loading corrupt virtual
                   disks and update Service Console packages
Issue date:        2009-01-30
Updated on:        2009-01-30 (initial release of advisory)
CVE numbers:       CVE-2008-4914 CVE-2008-4309 CVE-2008-4226
                   CVE-2008-4225
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1. Summary

   Updated ESX patches address an issue loading corrupt
   virtual disks and update Service Console packages
   for net-snmp and libxml2.

2. Relevant releases

   VMware ESXi 3.5 without patch ESXe350-200901401-I-SG

   VMware ESX 3.5 without patches  ESX350-200901401-SG,
                                   ESX350-200901409-SG,
                                   ESX350-200901410-SG

   VMware ESX 3.0.3 without patches ESX303-200901405-SG,
                                    ESX303-200901406-SG

   VMware ESX 3.0.2 without patches ESX-1007673, ESX-1007674

   NOTE: Extended support for ESX 3.5 Update 1 ends on 7/25/2009, users
         should plan to upgrade to at least ESX 3.5 Update 2 by that
         time.

         Extended support for ESX 3.0.2 Update 1 ends on 2009-08-08.
         Users should plan to upgrade to ESX 3.0.3 and preferably to
         the newest release available.

3. Problem Description

 a. Loading a corrupt delta disk may cause ESX to crash

    If the VMDK delta disk of a snapshot is corrupt, an ESX host might
    crash when the corrupted disk is loaded.  VMDK delta files exist
    for virtual machines with one or more snapshots. This change ensures
    that a corrupt VMDK delta file cannot be used to crash ESX hosts.

    A corrupt VMDK delta disk, or virtual machine would have to be loaded
    by an administrator.

    VMware would like to thank Craig Marshall for reporting this issue.

    The Common Vulnerabilities and Exposures Project (cve.mitre.org)
    has assigned the name CVE-2008-4914 to this issue.

    The following table lists what action remediates the vulnerability
    (column 4) if a solution is available.

    VMware         Product   Running  Replace with/
    Product        Version   on       Apply Patch
    =============  ========  =======  =================
    VirtualCenter  any       Windows  not affected

    hosted *       any       any      not affected

    ESXi           3.5       ESXi     ESXe350-200901401-I-SG

    ESX            3.5       ESX      ESX350-200901401-SG
    ESX            3.0.3     ESX      not affected
    ESX            3.0.2     ESX      not affected
    ESX            2.5.5     ESX      not affected

    * hosted products are VMware Workstation, Player, ACE, Server, Fusion.

 b. Updated Service Console package net-snmp

    Net-SNMP is an implementation of the Simple Network Management
    Protocol (SNMP). SNMP is used by network management systems to
    monitor hosts.

    A denial-of-service flaw was found in the way Net-SNMP processes
    SNMP GETBULK requests. A remote attacker who issued a specially-
    crafted request could cause the snmpd server to crash.

    The Common Vulnerabilities and Exposures Project (cve.mitre.org)
    has assigned the name CVE-2008-4309 to this issue.

    The following table lists what action remediates the vulnerability
    (column 4) if a solution is available.

    VMware         Product   Running  Replace with/
    Product        Version   on       Apply Patch
    =============  ========  =======  =================
    VirtualCenter  any       Windows  not affected

    hosted *       any       any      not affected

    ESXi           3.5       ESXi     not affected

    ESX            3.5       ESX      ESX350-200901409-SG
    ESX            3.0.3     ESX      ESX303-200901405-SG
    ESX            3.0.2     ESX      ESX-1007673
    ESX            2.5.5     ESX      not affected

    * hosted products are VMware Workstation, Player, ACE, Server, Fusion.

 c. Updated Service Console package libxml2

    An integer overflow flaw causing a heap-based buffer overflow was
    found in the libxml2 XML parser. If an application linked against
    libxml2 processed untrusted, malformed XML content, it could cause
    the application to crash or, possibly, execute arbitrary code.

    The Common Vulnerabilities and Exposures Project (cve.mitre.org) has
    assigned the name CVE-2008-4226 to this issue.

    A denial of service flaw was discovered in the libxml2 XML parser.
    If an application linked against libxml2 processed untrusted,
    malformed XML content, it could cause the application to enter
    an infinite loop.

    The Common Vulnerabilities and Exposures Project (cve.mitre.org)
    has assigned the name CVE-2008-4225 to this issue.

    The following table lists what action remediates the vulnerability
    (column 4) if a solution is available.

    VMware         Product   Running  Replace with/
    Product        Version   on       Apply Patch
    =============  ========  =======  =================
    VirtualCenter  any       Windows  not affected

    hosted *       any       any      not affected

    ESXi           3.5       ESXi     not affected

    ESX            3.5       ESX      ESX350-200901410-SG
    ESX            3.0.3     ESX      ESX303-200901406-SG
    ESX            3.0.2     ESX      ESX-1007674
    ESX            2.5.5     ESX      affected, patch pending

    * hosted products are VMware Workstation, Player, ACE, Server, Fusion.

4. Solution

   Please review the patch/release notes for your product and version
   and verify the md5sum of your downloaded file.

   ESXi
   ----
   ESXi 3.5 patch ESXe350-200901401-I-SG
   http://download3.vmware.com/software/vi/ESXe350-200901401-O-SG.zip
   md5sum: 588dc7bfdee4e4c5ac626906c37fc784
   http://kb.vmware.com/kb/1006661

   NOTE: The three ESXi patches for Firmware "I", VMware Tools "T," and
         the VI Client "C" are contained in a single offline "O"
         download file.

   ESX
   ---
   ESX 3.5 patch ESX350-200901401-SG (VMDK)
   http://download3.vmware.com/software/vi/ESX350-200901401-SG.zip
   md5sum: 2769ac30078656b01ca1e2fdfa3230e9
   http://kb.vmware.com/kb/1006651

   ESX 3.5 patch ESX350-200901409-SG (net-snmp)
   http://download3.vmware.com/software/vi/ESX350-200901409-SG.zip
   md5sum: 2c75cd848d9f3c51619b9a7bd60d20a3
   http://kb.vmware.com/kb/1006659

   ESX 3.5 patch ESX350-200901410-SG (libxml2)
   http://download3.vmware.com/software/vi/ESX350-200901410-SG.zip
   md5sum: 061f96373244e7eab3f0d5fe2415ce91
   http://kb.vmware.com/kb/1006660

   ESX 3.0.3 patch ESX303-200901405-SG (net-snmp)
   http://download3.vmware.com/software/vi/ESX303-200901405-SG.zip
   md5sum: 9983b63a1e2dc7fb3d80f0021c1c347c
   http://kb.vmware.com/kb/1007681

   ESX 3.0.3 patch ESX303-200901406-SG (libxml2)
   http://download3.vmware.com/software/vi/ESX303-200901406-SG.zip
   md5sum: 2d5a827ccaf406a54dd3a5affee39db0
   http://kb.vmware.com/kb/1007682

   ESX 3.0.2 patch ESX-1007673 (net-snmp)
   http://download3.vmware.com/software/vi/ESX-1007673.tgz
   md5sum: af4a36d2b4d731177210c789df844974
   http://kb.vmware.com/kb/1007673

   ESX 3.0.2 patch ESX-1007674 (libxml2)
   http://download3.vmware.com/software/vi/ESX-1007674.tgz
   md5sum: fb4b5e9a03dea5b9e24cc0766ddd2581
   http://kb.vmware.com/kb/1007674

5. References

   CVE numbers
   http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4914
   http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4309
   http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4226
   http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4225

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6. Change log

2009-01-30  VMSA-2009-0001
Initial security advisory after release of patches for ESXi, ESX 3.5,
ESX 3.0.3, ESX 3.0.2 on 2009-01-30.

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7. Contact

E-mail list for product security notifications and announcements:
http://lists.vmware.com/cgi-bin/mailman/listinfo/security-announce

This Security Advisory is posted to the following lists:

  * security-announce at lists.vmware.com
  * bugtraq at securityfocus.com
  * full-disclosure at lists.grok.org.uk

E-mail:  security at vmware.com
PGP key at: http://kb.vmware.com/kb/1055

VMware Security Center
http://www.vmware.com/security

VMware security response policy
http://www.vmware.com/support/policies/security_response.html

General support life cycle policy
http://www.vmware.com/support/policies/eos.html

VMware Infrastructure support life cycle policy
http://www.vmware.com/support/policies/eos_vi.html

Copyright 2009 VMware Inc.  All rights reserved.


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