(VMware Issues Fix for VMware ESX) Libxml2 UTF-8 Validation Flaw Lets Remote Users Deny Service
|
|
SecurityTracker Alert ID: 1019731 |
|
SecurityTracker URL: http://securitytracker.com/id/1019731
|
|
CVE Reference:
CVE-2007-6284
(Links to External Site)
|
Date: Mar 31 2008
|
Impact:
Denial of service via network
|
Fix Available: Yes Vendor Confirmed: Yes
|
Version(s): VMware ESX 2.5.5 before Upgrade Patch 6, VMware ESX 2.5.4 before Upgrade Patch 17
|
Description:
A vulnerability was reported in Libxml2. A remote user can cause denial of service conditions. VMware ESX is affected.
A remote user can send specially crafted data to a target application that uses the libxml UTF-8 decoding function to cause the library to enter an infinite loop.
The vulnerability resides in the xmlCurrentChar() function and can be triggered by certain multibyte combinations.
Brad Fitzpatrick of Google reported this vulnerability.
|
Impact:
A remote user can cause the target application to enter an infinite loop and consume excessive CPU resources on the target system.
|
Solution:
VMware has issued a fix.
ESX 2.5.5 Upgrade Patch 6
http://download3.vmware.com/software/esx/esx-2.5.5-78667-upgrade.tar.gz
md5sum: b4d5e98cc175a507e8f89d9c7b993e2c
http://vmware.com/support/esx25/doc/esx-255-200803-patch.html
ESX 2.5.4 Upgrade Patch 17
http://download3.vmware.com/software/esx/esx-2.5.4-78717-upgrade.tar.gz
md5sum: 827406844dacba92f695980f49119465
http://vmware.com/support/esx25/doc/esx-254-200803-patch.html
|
Cause:
Input validation error, State error
|
Underlying OS:
|
|
Message History:
This archive entry is a follow-up to the message listed below.
|
Source Message Contents
|
Date: Fri, 28 Mar 2008 17:32:21 -0700
Subject: VMSA-2008-0006 Updated libxml2 service console package
|
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
- -------------------------------------------------------------------
~ VMware Security Advisory
Advisory ID: VMSA-2008-0006
Synopsis: Updated libxml2 service console package
Issue date: 2008-03-28
Updated on: 2008-03-28 (initial release of advisory)
CVE number: CVE-2007-6284
- -------------------------------------------------------------------
1. Summary:
~ Updated libxml2 package addresses a security issue.
2. Relevant releases:
~ VMware ESX 2.5.5 before Upgrade Patch 6
~ VMware ESX 2.5.4 before Upgrade Patch 17
NOTE: ESX 2.5.4 is in Extended Support and its end of support (Security
and Bug fixes) is 10/08/2008. Users should plan to upgrade to at least
2.5.5 and preferably the newest release available before the end of
extended support.
ESX Server prior to 2.5.4 are no longer in Extended Support. Users
should upgrade to a supported version of the product.
The VMware Infrastructure Support Life Cycle Policy can be
found here: http://www.vmware.com/support/policies/eos_vi.html
3. Problem description:
~ Updated libxml2 package to address a denial of service flaw.
~ Thanks to the Google security team for identifying and reporting
~ this issue.
~ The Common Vulnerabilities and Exposures project (cve.mitre.org)
~ has assigned the name CVE-2007-6284 to this issue.
4. Solution:
Please review the Patch notes for your product and version and verify
the md5sum of your downloaded file.
ESX 2.5.5 Upgrade Patch 6
http://download3.vmware.com/software/esx/esx-2.5.5-78667-upgrade.tar.gz
md5sum: b4d5e98cc175a507e8f89d9c7b993e2c
http://vmware.com/support/esx25/doc/esx-255-200803-patch.html
ESX 2.5.4 Upgrade Patch 17
http://download3.vmware.com/software/esx/esx-2.5.4-78717-upgrade.tar.gz
md5sum: 827406844dacba92f695980f49119465
http://vmware.com/support/esx25/doc/esx-254-200803-patch.html
5. References:
~ CVE numbers
~ http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6284
- -------------------------------------------------------------------
6. 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@lists.vmware.com
~ * bugtraq@securityfocus.com
~ * full-disclosure@lists.grok.org.uk
E-mail: security@vmware.com
Security web site
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 2008 VMware Inc. All rights reserved.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.7 (GNU/Linux)
iD8DBQFH7Y4TS2KysvBH1xkRCN8OAJ0eVZsU0UdJ3Uxq13lwL8aqHNGQDgCeO6I4
GQohVVhkDGpY15oIWJudPxw=
=QvVA
-----END PGP SIGNATURE-----
|
|
