Session fixation vulnerability in the vSphere Web Client Server in VMware vCenter Server 5.0 before Update 3 allows remote attackers to hijack web sessions and gain privileges via unspecified vectors.

VMware vCenter Server 5.1 before Update 1, when anonymous LDAP binding for Active Directory is enabled, allows remote attackers to bypass authentication by providing a valid username in conjunction with an empty password.

VMware vCenter Server 4.0 before Update 4b, 5.0 before Update 2, and 5.1 before 5.1.0b; VMware ESXi 3.5 through 5.1; and VMware ESX 3.5 through 4.1 do not properly implement the Network File Copy (NFC) protocol, which allows man-in-the-middle attackers to execute arbitrary code or cause a denial of service (memory corruption) by modifying the client-server data stream.

VMware vCenter Server 4.1 before Update 3 and 5.0 before Update 2, and vCSA 5.0 before Update 2, allows remote attackers to cause a denial of service (disk consumption) via vectors that trigger large log entries.

VMware vCenter Server Appliance (vCSA) 5.0 before Update 2 does not properly parse XML documents, which allows remote authenticated users to read arbitrary files via unspecified vectors.

Directory traversal vulnerability in VMware vCenter Server Appliance (vCSA) 5.0 before Update 2 and 5.1 before Patch 1 allows remote authenticated users to read arbitrary files via unspecified vectors.

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) wwhelp_entry.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.

The udp_sendmsg function in the UDP implementation in (1) net/ipv4/udp.c and (2) net/ipv6/udp.c in the Linux kernel before 2.6.19 allows local users to gain privileges or cause a denial of service (NULL pointer dereference and system crash) via vectors involving the MSG_MORE flag and a UDP socket.

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.

nfsd in the Linux kernel before 2.6.28.9 does not drop the CAP_MKNOD capability before handling a user request in a thread, which allows local users to create device nodes, as demonstrated on a filesystem that has been exported with the root_squash option.