VMware ESX 2.5.4

Integer underflow in the DHCP server in EMC VMware Workstation before 5.5.5 Build 56455 and 6.x before 6.0.1 Build 55017, Player before 1.0.5 Build 56455 and Player 2 before 2.0.1 Build 55017, ACE before 1.0.3 Build 54075 and ACE 2 before 2.0.1 Build 55017, and Server before 1.0.4 Build 56528 allows remote attackers to execute arbitrary code via a malformed DHCP packet that triggers a stack-based buffer overflow.

The DHCP server in EMC VMware Workstation before 5.5.5 Build 56455 and 6.x before 6.0.1 Build 55017, Player before 1.0.5 Build 56455 and Player 2 before 2.0.1 Build 55017, ACE before 1.0.3 Build 54075 and ACE 2 before 2.0.1 Build 55017, and Server before 1.0.4 Build 56528 allows remote attackers to execute arbitrary code via a malformed packet that triggers "corrupt stack memory."

Multiple buffer overflows in VIX API 1.1.x before 1.1.4 build 93057 on VMware Workstation 5.x and 6.x, VMware Player 1.x and 2.x, VMware ACE 2.x, VMware Server 1.x, VMware Fusion 1.x, VMware ESXi 3.5, and VMware ESX 3.0.1 through 3.5 allow guest OS users to execute arbitrary code on the host OS via unspecified vectors.

libxml2 2.6.32 and earlier does not properly detect recursion during entity expansion in an attribute value, which allows context-dependent attackers to cause a denial of service (memory and CPU consumption) via a crafted XML document.

HGFS.sys in the VMware Tools package in VMware Workstation 5.x before 5.5.6 build 80404, VMware Player before 1.0.6 build 80404, VMware ACE before 1.0.5 build 79846, VMware Server before 1.0.5 build 80187, and VMware ESX 2.5.4 through 3.0.2 does not properly validate arguments in user-mode METHOD_NEITHER IOCTLs to the \\.\hgfs device, which allows guest OS users to modify arbitrary memory locations in guest kernel memory and gain privileges.