The disconnect method in the Philips USB Webcam (pwc) driver...
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- http://www.redhat.com/support/errata/RHSA-2008-0275.html
- http://secunia.com/advisories/30294
- 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/28706
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.22.6
- http://secunia.com/advisories/26994
- http://www.debian.org/security/2008/dsa-1504
- http://www.mandriva.com/security/advisories?name=MDVSA-2008:008
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10494
- http://www.ubuntu.com/usn/usn-558-1
- http://www.debian.org/security/2007/dsa-1381
- http://www.mandriva.com/security/advisories?name=MDVSA-2008:105
- http://www.debian.org/security/2008/dsa-1503
- http://www.ubuntu.com/usn/usn-574-1
- http://secunia.com/advisories/29058
- http://secunia.com/advisories/28971
- http://www.securityfocus.com/bid/25504
- http://secunia.com/advisories/28170
- http://secunia.com/advisories/32799
- http://www.ubuntu.com/usn/usn-578-1
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Weaknesses (CWE)
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MITRE ATT&CK TTPs
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