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

Another X.Org Security Bug Found, Dates Back To 1991

X.Org

Published on 07 January 2014 06:00 PM EST
Written by Michael Larabel in X.Org
30 Comments

Another X.Org Security Advisory had to be publicly issued today to make known a buffer overflow in an X.Org library that's been present in every X11 release from X11R5 and the code was completed way back in 1991.

Back in October there was a X11 security advisory going back to 1993 and today's noted security issue was for code introduced in May of 1991. This security advisory comes just days after the X Server security was called a disaster with what will amount to at least hundreds of open security issues found by a researcher.

The security was found via running the cppcheck utility as a static analyzer to look at the code. The issue found is a stack buffer overflow in the passing of BDF font files in libXfont. It's an issue present for more than two decades and was easily spotted with static analysis of the code. When a buffer overflow does happen in libXfont, it's possible that the bug could lead to an unprivileged user acquiring root access to the system.

This bug has been found in every X Server release going back to X11R5 and was corrected with the new release of libXfont 1.4.6. More details on this latest security advisory can be found via the xorg-announce list.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
Latest Linux Hardware Reviews
  1. Intel Launches The Core i7 5960X, Mighty Powerful Haswell-E CPUs
  2. AMD Radeon R9 290: Gallium3D vs. Catalyst Drivers
  3. AMD Radeon R9 290 Open-Source Driver Works, But Has A Ways To Go
  4. Trying The Configurable 45 Watt TDP With AMD's A10-7800 / A6-7400K
Latest Linux Articles
  1. The Fastest NVIDIA GPUs For Open-Source Nouveau With Steam Linux Gaming
  2. Testing For The Latest Linux Kernel Power Regression
  3. The Most Energy Efficient Radeon GPU For AMD Linux Gaming
  4. 20-Way Radeon Comparison With Open-Source Graphics For Steam On Linux Gaming
Latest Linux News
  1. AMD Steppe Eagle Flys To Coreboot
  2. Intel Beignet Is Working Out Surprisingly Well For OpenCL On Linux
  3. Coreboot Adds Lenovo X220 With Native Sandy Bridge Support
  4. Canonical Has Yet To Land X.Org Server 1.16 For Ubuntu 14.10
  5. Imagination Launches A MIPS Development Board
  6. Getting Involved With The New Raspberry Pi Graphics Driver
  7. A New AMD Catalyst Linux Driver Unofficially Surfaces
  8. LibreOffice Ported To 64-bit ARM (AArch64)
  9. Enlightenment E19 RC3 Shows Off The New Wayland Compositor
  10. Metro Redux Is Going To Require OpenGL 4.x On Linux
Latest Forum Discussions
  1. Btrfs Gets Talked Up, Googler Encourages You To Try Btrfs
  2. Updated graphics drivers for Ubuntu 12.04 Precise LTS
  3. Catalyst 14.201.1008
  4. It's Now Possible To Play Netflix Natively On Linux Without Wine Plug-Ins
  5. Users defect to Linux as OpenBSD removes Lynx from base system
  6. Updated and Optimized Ubuntu Free Graphics Drivers
  7. Canonical Joined The Khronos Group To Help Mir/Wayland Drivers
  8. Radeon HD5670 and Ubuntu 14.04