1. Computers
  2. Display Drivers
  3. Graphics Cards
  4. Memory
  5. Motherboards
  6. Processors
  7. Software
  8. Storage
  9. Operating Systems


Facebook RSS Twitter Twitter Google Plus


Phoronix Test Suite

OpenBenchmarking.org

X Server Security Disaster: "It's Worse Than It Looks"

X.Org

Published on 31 December 2013 03:46 PM EST
Written by Michael Larabel in X.Org
21 Comments

There's X.Org Server security vulnerabilities -- even for vulnerabilities going back two decades -- from time to time and in related components of the Linux graphics stack. Parts of the X.Org stack can be in fairly rough shape given the age of X11, but a very poor picture of it was painted at the Chaos Communication Congress. It was stated that the X.Org security is even worse than it looks.

At the 30th Chaos Communication Congress (CCC) last week in Germany, Ilja van Sprundel, a security researcher who previously reported X.Org vulnerabilities, gave a presentation. Covered in the presentation at the very well known CCC conference in Germany were client-side issues and then an entire half of the presentation devoted to the X.Org Server.

Among the quotes used were "GLX is a horrible demotivator! 80,000 lines of sheer terror." and "In the past couple of months I've found 120 bugs there, and I'm not close to done."

Those wanting to read more about the troubled state of the X.Org Server security can watch the CCC presentation video from the CCC.de web-site.

For those thinking its FUD or blown out of proportion, Oracle's Alan Coopersmith who has long been involved with X11/X.Org, was the one that originally shared this presentation on the xorg-devel list.

Alan added on the mailing list, "I think it's mostly accurate (there's a couple minor details to quibble with, and there's a bit about 10-15 minutes in everyone can fast forward through). His point about today's world being much different than when X was created, and nearly 30 year old hand written binary protocol parsing code not being the best idea, is much like the rationale for xcb's creation, but we've not been effective at getting transitioned to it. (We keep talking about using XCB to generate server-side protocol handling & byte swapping, but never have, and haven't made it possible for all the clients to move to XCB, since there's still a couple missing pieces.)"

Thankfully some of the issues should be addressed in moving to Wayland (or Mir). There's also ongoing bug-fixes and addressing of security issues in X.Org Server updates -- just last week X.Org Server 1.15 was released.

Latest Linux Hardware Reviews
  1. ASUS AM1I-A: A Mini-ITX Board For Socketed Kabini APUs
  2. Mini-Box M350: A Simple, Affordable Mini-ITX Case
  3. Overclocking The AMD AM1 Athlon & Sempron APUs
  4. AMD Athlon 5350 / 5150 & Sempron 3850 / 2650
Latest Linux Articles
  1. Ubuntu 12.04.4 vs. 13.10 vs. 14.04 LTS Desktop Benchmarks
  2. AMD OpenCL Performance With AM1 Kabini APUs
  3. A Quick Look At GCC 4.9 vs. LLVM Clang 3.5
  4. Are AMD Athlon/Sempron APUs Fast Enough For Steam On Linux?
Latest Linux News
  1. FreeBSD Advances For ARM, Bhyve, Clang
  2. Ubuntu 14.04 LTS "Trusty Tahr" Officially Released
  3. Ubuntu 12.04 LTS vs. 14.04 LTS Server Benchmarks
  4. QEMU 2.0 Released With ARM, x86 Enhancements
  5. Running The Unity 8 Preview Session On Ubuntu 14.04 LTS
  6. R600 Gallium3D Disables LLVM Back-End By Default
  7. Fedora 21 Gets GNOME 3.12, PHP 5.6, Mono 3.4
  8. Fedora Workstation Is Making Me Quite Excited
  9. Maynard: A Lightweight Wayland Desktop
  10. Chromium Browser Going Through Growing Pains In Ubuntu 14.04
  11. KDE 4.13 Is Being Released Today With New Features
  12. Trying Out Radeon R9 290 Graphics On Open-Source
Latest Forum Discussions
  1. The GNOME Foundation Is Running Short On Money
  2. Updated and Optimized Ubuntu Free Graphics Drivers
  3. Radeon 8000M problematic on Linux?
  4. After Jack Keane, RuseSoft will briing Ankh 3 to Linux through Desura
  5. Suspected PHP Proxy Issue
  6. Linux Kernel Developers Fed Up With Ridiculous Bugs In Systemd
  7. Change installation destination from home directory
  8. Bye bye BSD, Hello Linux: A Sys Admin's Story