Bug 126409

Summary:	CAN-2004-0075 Vicam USB user/kernel copying (ipf)
Product:	Red Hat Enterprise Linux 2.1	Reporter:	Mark J. Cox <mjc>
Component:	kernel	Assignee:	Jim Paradis <jparadis>
Status:	CLOSED NOTABUG	QA Contact:	Brian Brock <bbrock>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	2.1	CC:	peterm, riel
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2004-12-01 09:55:18 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Mark J. Cox 2004-06-21 10:04:17 UTC

"The Vicam USB driver does not use the copy_from_user function when
copying data from userspace to kernel space, which crosses security
boundaries and allows local users to cause a denial of service."

Only affects Red Hat Advanced Workstation/Advanced Server (ipf)

patches and details at:
http://marc.theaimsgroup.com/?l=linux-kernel&m=108197561914277 and
http://marc.theaimsgroup.com/?l=linux-kernel&m=108202386509206

Comment 1 Jim Paradis 2004-12-01 09:55:18 UTC

NOTABUG.  There is no vicam driver in 2.1AS i386 (pensacola), and the
driver in 2.1AS ia64 already uses copy_from_user/copy_to_user.

Comment 2 Mark J. Cox 2004-12-01 10:05:36 UTC

Agreed, this is fixed in the upstream 2.4.18

Comment 3 Mark J. Cox 2004-12-01 10:14:30 UTC

For completeness the reason for this confusion is that Alan Cox fixed
this missing copy_*_user in 2.4.25.  However the problem was caused by
a n earlier commit, so only 2.4.21, 2.4.22, 2.4.23, 2.4.24 were
vulnerable.

(20021205 cset@3defd0e9x_YHB2ivyh_e3llqMHnZIA)
(20030505 cset@3eb6f9adaMJb2lm0SmLglM-WkSdDdA)