Your submission was sent successfully! Close

Thank you for contacting us. A member of our team will be in touch shortly. Close

You have successfully unsubscribed! Close

Thank you for signing up for our newsletter!
In these regular emails you will find the latest updates about Ubuntu and upcoming events where you can meet our team.Close

USN-1225-1: Linux kernel vulnerabilities

4 October 2011

Multiple kernel flaws have been fixed.

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Releases

Packages

Details

Timo Warns discovered that the EFI GUID partition table was not correctly
parsed. A physically local attacker that could insert mountable devices
could exploit this to crash the system or possibly gain root privileges.
(CVE-2011-1776)

Dan Rosenberg discovered that the IPv4 diagnostic routines did not
correctly validate certain requests. A local attacker could exploit this to
consume CPU resources, leading to a denial of service. (CVE-2011-2213)

Dan Rosenberg discovered that the Bluetooth stack incorrectly handled
certain L2CAP requests. If a system was using Bluetooth, a remote attacker
could send specially crafted traffic to crash the system or gain root
privileges. (CVE-2011-2497)

Fernando Gont discovered that the IPv6 stack used predictable fragment
identification numbers. A remote attacker could exploit this to exhaust
network resources, leading to a denial of service. (CVE-2011-2699)

Time Warns discovered that long symlinks were incorrectly handled on Be
filesystems. A local attacker could exploit this with a malformed Be
filesystem and crash the system, leading to a denial of service.
(CVE-2011-2928)

Darren Lavender discovered that the CIFS client incorrectly handled certain
large values. A remote attacker with a malicious server could exploit this
to crash the system or possibly execute arbitrary code as the root user.
(CVE-2011-3191)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 8.04

After a standard system update you need to reboot your computer to make
all the necessary changes.

References

Related notices

  • USN-1219-1: linux-lts-backport-maverick, linux-image-2.6.35-30-generic-pae, linux-image-2.6.35-30-virtual, linux-image-2.6.35-30-generic, linux-image-2.6.35-30-server
  • USN-1241-1: linux-fsl-imx51, linux-image-2.6.31-611-imx51
  • USN-1228-1: linux-image-2.6.38-1209-omap4, linux-ti-omap4
  • USN-1220-1: linux-ti-omap4, linux-image-2.6.35-903-omap4
  • USN-1227-1: linux, linux-image-2.6.35-30-powerpc-smp, linux-image-2.6.35-30-versatile, linux-image-2.6.35-30-generic-pae, linux-image-2.6.35-30-powerpc64-smp, linux-image-2.6.35-30-virtual, linux-image-2.6.35-30-powerpc, linux-image-2.6.35-30-generic, linux-image-2.6.35-30-server, linux-image-2.6.35-30-omap
  • USN-1168-1: linux-image-2.6.32-33-virtual, linux-image-2.6.32-33-ia64, linux-image-2.6.32-33-sparc64, linux-image-2.6.32-33-386, linux-image-2.6.32-33-powerpc-smp, linux-image-2.6.32-33-preempt, linux-image-2.6.32-33-sparc64-smp, linux-image-2.6.32-33-generic-pae, linux-image-2.6.32-33-powerpc64-smp, linux-image-2.6.32-33-versatile, linux-image-2.6.32-33-generic, linux-image-2.6.32-33-lpia, linux-image-2.6.32-33-server, linux, linux-image-2.6.32-33-powerpc
  • USN-1162-1: linux-image-2.6.32-217-dove, linux-mvl-dove
  • USN-1167-1: linux-image-2.6.38-10-powerpc-smp, linux-image-2.6.38-10-generic-pae, linux-image-2.6.38-10-omap, linux-image-2.6.38-10-generic, linux-image-2.6.38-10-powerpc, linux-image-2.6.38-10-versatile, linux-image-2.6.38-10-powerpc64-smp, linux-image-2.6.38-10-virtual, linux, linux-image-2.6.38-10-server
  • USN-1256-1: linux-image-2.6.38-12-generic-pae, linux-image-2.6.38-12-virtual, linux-lts-backport-natty, linux-image-2.6.38-12-server, linux-image-2.6.38-12-generic
  • USN-1161-1: linux-image-2.6.32-317-ec2, linux-ec2
  • USN-1159-1: linux-image-2.6.32-417-dove, linux-mvl-dove
  • USN-1208-1: linux-image-2.6.32-418-dove, linux-mvl-dove
  • USN-1246-1: linux-image-2.6.38-12-generic-pae, linux, linux-image-2.6.38-12-virtual, linux-image-2.6.38-12-powerpc, linux-image-2.6.38-12-powerpc64-smp, linux-image-2.6.38-12-versatile, linux-image-2.6.38-12-server, linux-image-2.6.38-12-omap, linux-image-2.6.38-12-generic, linux-image-2.6.38-12-powerpc-smp
  • USN-1203-1: linux-image-2.6.32-218-dove, linux-mvl-dove
  • USN-1218-1: linux-image-2.6.32-34-virtual, linux-image-2.6.32-34-386, linux-image-2.6.32-34-generic, linux-image-2.6.32-34-versatile, linux-image-2.6.32-34-lpia, linux-image-2.6.32-34-sparc64-smp, linux-image-2.6.32-34-server, linux-image-2.6.32-34-powerpc, linux-image-2.6.32-34-preempt, linux-image-2.6.32-34-sparc64, linux-image-2.6.32-34-generic-pae, linux, linux-image-2.6.32-34-powerpc64-smp, linux-image-2.6.32-34-powerpc-smp, linux-image-2.6.32-34-ia64
  • USN-1216-1: linux-ec2, linux-image-2.6.32-318-ec2
  • USN-1253-1: linux-image-2.6.32-35-generic, linux-image-2.6.32-35-powerpc-smp, linux-image-2.6.32-35-server, linux-image-2.6.32-35-sparc64, linux-image-2.6.32-35-lpia, linux-image-2.6.32-35-generic-pae, linux-image-2.6.32-35-versatile, linux-image-2.6.32-35-preempt, linux-image-2.6.32-35-sparc64-smp, linux-image-2.6.32-35-powerpc, linux-image-2.6.32-35-ia64, linux-image-2.6.32-35-virtual, linux-image-2.6.32-35-powerpc64-smp, linux, linux-image-2.6.32-35-386
  • USN-1239-1: linux-ec2, linux-image-2.6.32-319-ec2
  • USN-1240-1: linux-image-2.6.32-219-dove, linux-mvl-dove
  • USN-1245-1: linux-image-2.6.32-419-dove, linux-mvl-dove
  • USN-1202-1: linux-ti-omap4, linux-image-2.6.35-903-omap4
  • USN-1211-1: linux-image-2.6.38-11-server, linux-image-2.6.38-11-generic, linux-image-2.6.38-11-versatile, linux-image-2.6.38-11-virtual, linux-image-2.6.38-11-generic-pae, linux-image-2.6.38-11-powerpc, linux-image-2.6.38-11-omap, linux-image-2.6.38-11-powerpc64-smp, linux, linux-image-2.6.38-11-powerpc-smp
  • USN-1204-1: linux-fsl-imx51, linux-image-2.6.31-610-imx51
  • USN-1212-1: linux-image-2.6.38-1209-omap4, linux-ti-omap4

Join the discussion

Need help with your security needs?

Ubuntu Pro provides up to ten-year security coverage for over 23,000 open-source packages within the Ubuntu Main and Universe repositories.

Talk to an expert to find out what would work best for you

Further reading