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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.

oval:org.mitre.oval:def:10494

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.

Family:
unix
Status:
ACCEPTED
Platform(s):
  • Oracle Linux 5
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 4
  • CentOS Linux 5
  • Oracle Linux 4
  • CentOS Linux 4
Class:
vulnerability
Reference(s):
  • CVE-2007-5093
Product(s):