CVE-2007-5093

The disconnect method in the Philips USB Webcam (pwc) driver in Linux kernel 2.6.x before 2.6.22.6 "relies on user space to close the device," which allows user-assisted local attackers to cause a denial of service (USB subsystem hang and CPU consumption in khubd) by not closing the device after the disconnect is invoked. NOTE: this rarely crosses privilege boundaries, unless the attacker can convince the victim to unplug the affected device.

Date published : 2007-09-26

http://www.securityfocus.com/bid/25504

http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.22.6