Linux Kernel LDT Selector Local Privilege Escalation and Denial of Service Vulnerability

Linux Kernel LDT Selector Local Privilege Escalation and Denial of Service Vulnerability

The Linux kernel is prone to a local vulnerability that may result in privilege escalation or a denial of service. This issue involves LDT (Local Descriptor Table) selectors in the VMI (Virtual Machine Interface).

Successfully exploiting this issue allows local attackers to trigger kernel crashes, denying service to legitimate users. Attackers can also use LDT selector functions to gain elevated privileges. This can result in the complete compromise of the VMI guest.

Versions prior to the Linux kernel 2.6.27-rc8-git5 running as a VMI guest are vulnerable.