Multiple use-after-free vulnerabilities in libxml2 2.5.10, 2.6.16, 2.6.26, 2.6.27, and 2.6.32, and libxml 1.8.17, allow context-dependent attackers to cause a denial of service (application crash) via crafted (1) Notation or (2) Enumeration attribute types in an XML file, as demonstrated by the Codenomicon XML fuzzing framework.

vCenter Server contains a partial information disclosure vulnerability. A malicious actor with non-administrative privileges to vCenter Server may leverage this issue to access unauthorized data.

Directory traversal vulnerability in vCenter Server in VMware vCenter 4.0 before Update 3 and 4.1 before Update 1, and VMware VirtualCenter 2.5 before Update 6a, allows remote attackers to read arbitrary files via unspecified vectors.

The self-extracting installer in the vSphere Client Installer package in VMware vCenter 4.0 before Update 3 and 4.1 before Update 1, VMware ESXi 4.x before 4.1 Update 1, and VMware ESX 4.x before 4.1 Update 1 does not have a digital signature, which might make it easier for remote attackers to spoof the software distribution via a Trojan horse installer.

Multiple cross-site scripting (XSS) vulnerabilities in WebWorks Help 2.0 through 5.0 in VMware vCenter 4.0 before Update 1 Build 208156; VMware Server 2.0.2; VMware ESX 4.0; VMware Lab Manager 2.x; VMware vCenter Lab Manager 3.x and 4.x before 4.0.1; VMware Stage Manager 1.x before 4.0.1; WebWorks Publisher 6.x through 8.x; WebWorks Publisher 2003; and WebWorks ePublisher 9.0.x through 9.3, 2008.1 through 2008.4, and 2009.x before 2009.3 allow remote attackers to inject arbitrary web script or HTML via (1) wwhelpentry.html, reachable through index.html and wwhsec.htm, (2) wwhelp/wwhimpl/api.htm, (3) wwhelp/wwhimpl/common/html/frameset.htm, (4) wwhelp/wwhimpl/common/scripts/switch.js, or (5) the window.opener component in wwhelp/wwhimpl/common/html/bookmark.htm, related to (a) unspecified parameters and (b) messages used in topic links for the bookmarking functionality.