Bug 124901

Summary: CAN-2004-0419 xdm opens random tcp sockets
Product: Red Hat Enterprise Linux 3 Reporter: Mark J. Cox <mjc>
Component: XFree86Assignee: Mike A. Harris <mharris>
Status: CLOSED ERRATA QA Contact: David Lawrence <dkl>
Severity: medium Docs Contact:
Priority: medium    
Version: 3.0CC: barryn
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
URL: http://bugs.xfree86.org/show_bug.cgi?id=1376
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2004-10-04 15:52:50 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 2004-06-01 11:20:31 UTC
See URL; "Even when DisplayManager.requestPort is set to 0, xdm will
open a chooserFd tcp socket on all interfaces. This apparently cannot
be disabled by configuration and presents a possible security risk."  

Note that this issue does not affect upstream XFree86 4.3.0 but
affects the versions shipped with Red Hat Enterprise Linux 3 which
contained a backported patch that contains the flaw.

        CAN-2004-0419 Affects: 3AS 3WS 3ES 3Desktop

This issue is minor severity as xdm is not used by default.

Comment 1 Mike A. Harris 2004-09-15 07:58:13 UTC
Is there a patch for this?

Comment 2 Mark J. Cox 2004-09-15 08:08:39 UTC
There is a patch at the URL in this bug entry.

Comment 4 Josh Bressers 2004-10-04 15:52:50 UTC
An errata 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-2004-478.html