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

Linux Kernel Exploit Affecting Linux 3.3 To Linux 3.8

Linux Kernel

Published on 25 February 2013 02:36 PM EST
Written by Michael Larabel in Linux Kernel
66 Comments

A Linux kernel exploit was made public this weekend that affects versions of Linux going back to the 3.3 kernel. This exploit allows for user-space programs to gain root access through a bug in the kernel's networking code.

As reported on Sunday with a CVE request, "An unprivileged user can send a netlink message resulting in an out-of-bounds access of the sock_diag_handlers[] array which, in turn, allows userland to take over control while in kernel mode."

It appears that individuals have been exploiting this kernel bug for some time. The bug was known to exist privately going back to mid-2012 but wasn't corrected until Saturday with these net patches.

The issue will be addressed in the Linux 3.9 kernel and should make it back to the latest stable point releases of the affected Linux kernel series.

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. Btrfs On 4 x Intel SSDs In RAID 0/1/5/6/10
  2. AMD Radeon R9 290 On Ubuntu 14.10: RadeonSI Gallium3D vs. Catalyst
  3. MSI X99S SLI PLUS On Linux
  4. NVIDIA GeForce GTX 970 Offers Great Linux Performance
Latest Linux Articles
  1. Windows 8.1 vs. Ubuntu 14.10 With Intel HD Graphics
  2. 6-Way Ubuntu 14.10 Radeon Gallium3D vs. Catalyst Driver Comparison
  3. NVIDIA vs. Nouveau Drivers On Ubuntu 14.10
  4. Ubuntu 14.10 Offers AMD Radeon Driver Performance Improvements
Latest Linux News
  1. GNOME 3.15.1 Released
  2. Red Hat Software Collections 1.2 Adds GCC 4.9, Nginx 1.6
  3. GLAMOR Acceleration Continues To Be Cleaned Up
  4. Russia's Yandex Web Browser Finally Released For Linux
  5. Linux Kernel Finally Being Optimized For SSHDs
  6. GPU Profiling Support Lands In Mozilla Firefox
  7. Kubuntu 15.04 Will Use KDE's Plasma 5 By Default
  8. KDBUS Submitted For Review To The Mainline Linux Kernel
  9. An Intel-Based Ubuntu Touch Tablet Is Planning To Launch Soon
  10. MIAOW: An Open-Source GPU Design Based On AMD's Southern Islands
Latest Forum Discussions
  1. Is foolish currently develop in machine code, hexadecimal and assembly?
  2. How to get rid of Linux
  3. Reducing The CPU Usage In Mesa To Improve Performance
  4. Help diagnosing problems with a Readon HD 4670 on Mesa 10.3.2-1
  5. Advertisements On Phoronix
  6. nv and xorg.conf under Debian PPC
  7. Looking for a Open-Source AMD experienced Linux mentor
  8. Bad perfomance in gaming