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prionPRIOn knowledge basePRION:CVE-2007-5093
HistorySep 26, 2007 - 9:17 p.m.

Design/Logic Flaw

2007-09-2621:17:00
PRIOn knowledge base
www.prio-n.com
3

5 Medium

AI Score

Confidence

High

4 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

HIGH

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:L/AC:H/Au:N/C:N/I:N/A:C

0.0004 Low

EPSS

Percentile

8.3%

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.

References

5 Medium

AI Score

Confidence

High

4 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

HIGH

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:L/AC:H/Au:N/C:N/I:N/A:C

0.0004 Low

EPSS

Percentile

8.3%