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Fencer Vulns
medium 4.0

CVE-2007-5093 json

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 devic…

published 2007-09-26 19 y ago modified 2026-06-16 4 mo ago also EUVD-2007-5074

cvss
4.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 28%
public exploits
0
none known

Summary

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.

Patch / fix

  • kernel RHEL 4 2.6.9-78.0.8.EL
  • kernel-smp RHEL 4 2.6.9-78.0.8.EL
  • kernel-xenU RHEL 4 2.6.9-78.0.8.EL
  • kernel-hugemem RHEL 4 2.6.9-78.0.8.EL
  • kernel-largesmp RHEL 4 2.6.9-78.0.8.EL
  • kernel RHEL 5 2.6.18-53.1.21.el5
  • kernel-PAE RHEL 5 2.6.18-53.1.21.el5
  • kernel-xen RHEL 5 2.6.18-53.1.21.el5

red hat advisories RHSA-2008:0972RHSA-2008:0275

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2007-5093 updated

kernel PWC driver DoS

  • Red Hat Enterprise Linux (v. 5 server) kernel 2.6.18-53.1.21.el5, kernel-PAE 2.6.18-53.1.21.el5, kernel-xen 2.6.18-53.1.21.el5, kernel-kdump 2.6.18-53.1.21.el5, kernel-debuginfo-common 2.6.18-53.1.21.el5
    fixed: vendor fix RHSA-2008:0275
  • Red Hat Enterprise Linux AS version 4 kernel 2.6.9-78.0.8.EL, kernel-smp 2.6.9-78.0.8.EL, kernel-xenU 2.6.9-78.0.8.EL, kernel-hugemem 2.6.9-78.0.8.EL, kernel-largesmp 2.6.9-78.0.8.EL
    fixed: vendor fix RHSA-2008:0972
  • Red Hat Enterprise Linux Desktop (v. 5 client) kernel 2.6.18-53.1.21.el5, kernel-PAE 2.6.18-53.1.21.el5, kernel-xen 2.6.18-53.1.21.el5, kernel-kdump 2.6.18-53.1.21.el5, kernel-debuginfo-common 2.6.18-53.1.21.el5
    fixed: vendor fix RHSA-2008:0275
  • Red Hat Enterprise Linux Desktop version 4 kernel 2.6.9-78.0.8.EL, kernel-smp 2.6.9-78.0.8.EL, kernel-xenU 2.6.9-78.0.8.EL, kernel-hugemem 2.6.9-78.0.8.EL, kernel-largesmp 2.6.9-78.0.8.EL Red Hat Enterprise Linux ES version 4 kernel 2.6.9-78.0.8.EL, kernel-smp 2.6.9-78.0.8.EL, kernel-xenU 2.6.9-78.0.8.EL, kernel-hugemem 2.6.9-78.0.8.EL, kernel-largesmp 2.6.9-78.0.8.EL Red Hat Enterprise Linux WS version 4 kernel 2.6.9-78.0.8.EL, kernel-smp 2.6.9-78.0.8.EL, kernel-xenU 2.6.9-78.0.8.EL, kernel-hugemem 2.6.9-78.0.8.EL, kernel-largesmp 2.6.9-78.0.8.EL
    fixed: vendor fix RHSA-2008:0972

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.35% chance of exploitation in the next 30 days, higher than 28% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 4.0 AV:L/AC:H/Au:N/C:N/I:N/A:C

Classification

Weakness
  • CWE-399 Resource Management Errors
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.