CVE-2007-5093 Information

Description

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.

Reference

http://marc.info/?l=linux-kernel&m=118873457814808&w=2 http://marc.info/?l=linux-kernel&m=118880154122548&w=2 http://rhn.redhat.com/errata/RHSA-2008-0972.html http://secunia.com/advisories/26994 http://secunia.com/advisories/28170 http://secunia.com/advisories/28706 http://secunia.com/advisories/28971 http://secunia.com/advisories/29058 http://secunia.com/advisories/30294 http://secunia.com/advisories/32799 http://www.debian.org/security/2007/dsa-1381 http://www.debian.org/security/2008/dsa-1503 http://www.debian.org/security/2008/dsa-1504 http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.22.6 http://www.mandriva.com/security/advisories?name=MDVSA-2008:008 http://www.mandriva.com/security/advisories?name=MDVSA-2008:105 http://www.redhat.com/support/errata/RHSA-2008-0275.html http://www.securityfocus.com/bid/25504 http://www.ubuntu.com/usn/usn-558-1 http://www.ubuntu.com/usn/usn-574-1 http://www.ubuntu.com/usn/usn-578-1 https://oval.cisecurity.org/repository/search/definition/oval3Aorg.mitre.oval3Adef3A10494