Red Hat Bugzilla – Bug 169260
CVE-2005-3055 async usb devio oops
Last modified: 2007-11-30 17:07:20 EST
Harald Welte mailed the lkml on 20050925 with a report of how to cause a local
oops if a user has permissions to access an arbitrary usb device. I've rated
this as 'moderate' instead of 'important' due to that requirement. Although usb
permissions will be given automatically to console users, a DOS from a user who
has physical access to a machine is little extra risk and we ignore that from
the severity calculation.
See the following URL for the description and patch
Created attachment 120010 [details]
Candidate #1 - Linus' patch adapted to RHEL 4
Regarding my proposal of checking if we still belong to the same process group
(or equivalent), it probably is not worth pursuing. Even if I were able to
work out kinks, it does not offer any decisive advantages over Linus' idea
of checking UID/EUID (as implemented by Harald).
committed in stream U4 build 34.11. A test kernel with this patch is available
This issue is on Red Hat Engineering's list of planned work items
for the upcoming Red Hat Enterprise Linux 4.4 release. Engineering
resources have been assigned and barring unforeseen circumstances, Red
Hat intends to include this item in the 4.4 release.
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.