Bug 152417

Summary:	CAN-2005-0839 N_MOUSE line discipline flaw
Product:	Red Hat Enterprise Linux 4	Reporter:	Mark J. Cox <mjc>
Component:	kernel	Assignee:	Dave Jones <davej>
Status:	CLOSED ERRATA	QA Contact:	Brian Brock <bbrock>
Severity:	high	Docs Contact:
Priority:	medium
Version:	4.0	CC:	davem, jbaron, pfrields, riel, security-response-team, steved
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:	impact=important,reported=20050128,source=bk,public=20050128
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2005-04-19 18:52:29 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:
Bug Depends On:
Bug Blocks:	147461

Description Mark J. Cox 2005-03-29 11:37:40 UTC

+++ This bug was originally part of Bug #149693 +++

4. input: Only root should be able to set the N_MOUSE line discipline.
http://linux.bkbits.net:8080/linux-2.6/cset@41fa6464E1UuGu6zmketEYxm73KSyQ

Routine used in setting line discipline on a serial tty.  Note possibly the
wrong fix: http://www.mail-archive.com/linux-kernel@vger.kernel.org/msg64695.html

Impact: a non privileged user could inject mouse movements or possibly
keystrokes when another user is logged in.

Comment 1 Jason Baron 2005-03-31 19:55:10 UTC

This is already in our tree. Dave, should be moved to MODIFIED, i suspect.

Comment 2 Josh Bressers 2005-04-19 18:52:29 UTC

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.

http://rhn.redhat.com/errata/RHSA-2005-366.html