ubuntu-x-swat team mailing list archive

["Brian J. Murrell" <brian@xxxxxxxxxxxxxxx>]

Public bug reported:

Binary package hint: xorg

Lots of discussion over at:
http://ubuntuforums.org/showthread.php?t=965695

But the gist of it is, x11vnc is able to segfault xorg.  Quite simple to
reproduce.  Find a "victim" machine and boot it up to the gdm login
prompt.  Then ssh into the machine and run:

# DISPLAY=:0 x11vnc

(notice logged in as root) and then connect with a vnc client.  Try to
log in and very quickly the vnc connection will be closed and when you
reconnect you will be at a new login prompt.  That's because the last
X11 server crashed.  Check out /var/log/Xorg.0.log.old on the victim
machine.

ProblemType: Bug
Architecture: i386
Date: Sat Feb 20 17:09:35 2010
DistroRelease: Ubuntu 9.10
MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
NonfreeKernelModules: nvidia
Package: xorg 1:7.4+3ubuntu10
ProcCmdLine: auto BOOT_IMAGE=ubuntu root=/dev/mapper/rootvol-ubuntu_root
ProcEnviron:
 LANG=en_CA.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-19.56-generic
RelatedPackageVersions:
 xserver-xorg 1:7.4+3ubuntu10
 libgl1-mesa-glx 7.6.0-1ubuntu4
 libdrm2 2.4.14-1ubuntu1
 xserver-xorg-video-intel 2:2.9.0-1ubuntu2.1
 xserver-xorg-video-ati 1:6.12.99+git20090929.7968e1fb-0ubuntu1
SourcePackage: xorg
Uname: Linux 2.6.31-19-generic i686
dmi.bios.date: 10/23/2003
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 080009
dmi.board.name: P4P800S
dmi.board.vendor: ASUSTeK Computer Inc.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr080009:bd10/23/2003:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASUSTeKComputerInc.:rnP4P800S:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: To Be Filled By O.E.M.
dmi.product.version: To Be Filled By O.E.M.
dmi.sys.vendor: To Be Filled By O.E.M.
fglrx: Not loaded
system:
 distro:             Ubuntu
 architecture:       i686kernel:             2.6.31-19-generic

** Affects: xorg (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386

-- 
x11vnc able to segfault xorg
https://bugs.launchpad.net/bugs/525066
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