Linux Kernel 2.6.x - KVM 'pit_ioport_read()' Local Denial of Service

source: https://www.securityfocus.com/bid/38038/info


The Linux kernel is prone to a local denial-of-service vulnerability that affects the Kernel-based Virtual Machine (KVM).

Attackers with local access to a guest operating system can exploit this issue to crash the host operating system.

Successful exploits will deny service to legitimate users. Given the nature of this issue, attackers may also be able to run arbitrary code, but this has not been confirmed. 

The following example command is available:

cat /dev/port