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-1312-1: Linux kernel vulnerabilities

19 December 2011

Several security issues were fixed in the kernel.

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

A bug was discovered in the XFS filesystem's handling of pathnames. A local
attacker could exploit this to crash the system, leading to a denial of
service, or gain root privileges. (CVE-2011-4077)

Nick Bowler discovered the kernel GHASH message digest algorithm
incorrectly handled error conditions. A local attacker could exploit this
to cause a kernel oops. (CVE-2011-4081)

A flaw was found in the Journaling Block Device (JBD). A local attacker
able to mount ext3 or ext4 file systems could exploit this to crash the
system, leading to a denial of service. (CVE-2011-4132)

Clement Lecigne discovered a bug in the HFS file system bounds checking.
When a malformed HFS file system is mounted a local user could crash the
system or gain root privileges. (CVE-2011-4330)

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 11.04

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

References

Related notices

  • USN-1292-1: linux-image-2.6.35-31-server, linux-lts-backport-maverick, linux-image-2.6.35-31-generic-pae, linux-image-2.6.35-31-generic, linux-image-2.6.35-31-virtual
  • USN-1302-1: linux-ti-omap4, linux-image-2.6.35-903-omap4
  • USN-1299-1: linux-image-2.6.32-341-ec2, linux-ec2
  • USN-1340-1: linux-image-3.0.0-15-virtual, linux-lts-backport-oneiric, linux-image-3.0.0-15-generic-pae, linux-image-3.0.0-15-server, linux-image-3.0.0-15-generic
  • USN-1301-1: linux-image-2.6.38-13-server, linux-image-2.6.38-13-generic-pae, linux-image-2.6.38-13-virtual, linux-image-2.6.38-13-generic, linux-lts-backport-natty
  • USN-1336-1: linux-image-3.0.0-15-omap, linux-image-3.0.0-15-virtual, linux-image-3.0.0-15-generic-pae, linux-image-3.0.0-15-powerpc-smp, linux-image-3.0.0-15-powerpc, linux-image-3.0.0-15-powerpc64-smp, linux-image-3.0.0-15-server, linux, linux-image-3.0.0-15-generic
  • USN-1303-1: linux-mvl-dove, linux-image-2.6.32-421-dove
  • USN-1293-1: linux-image-2.6.35-31-versatile, linux-image-2.6.35-31-powerpc64-smp, linux-image-2.6.35-31-server, linux-image-2.6.35-31-generic-pae, linux-image-2.6.35-31-generic, linux-image-2.6.35-31-powerpc, linux-image-2.6.35-31-virtual, linux-image-2.6.35-31-omap, linux, linux-image-2.6.35-31-powerpc-smp
  • USN-1311-1: linux-image-2.6.32-37-versatile, linux-image-2.6.32-37-powerpc, linux-image-2.6.32-37-lpia, linux-image-2.6.32-37-powerpc-smp, linux-image-2.6.32-37-preempt, linux-image-2.6.32-37-386, linux-image-2.6.32-37-server, linux-image-2.6.32-37-virtual, linux-image-2.6.32-37-sparc64, linux-image-2.6.32-37-powerpc64-smp, linux-image-2.6.32-37-sparc64-smp, linux-image-2.6.32-37-ia64, linux-image-2.6.32-37-generic, linux, linux-image-2.6.32-37-generic-pae
  • USN-1330-1: linux-ti-omap4, linux-image-3.0.0-1206-omap4
  • USN-1300-1: linux-fsl-imx51, linux-image-2.6.31-612-imx51
  • USN-1304-1: linux-ti-omap4, linux-image-2.6.38-1209-omap4
  • USN-1291-1: linux-image-2.6.24-30-openvz, linux-image-2.6.24-30-sparc64, linux-image-2.6.24-30-rt, linux-image-2.6.24-30-mckinley, linux-image-2.6.24-30-server, linux-image-2.6.24-30-hppa32, linux-image-2.6.24-30-xen, linux, linux-image-2.6.24-30-generic, linux-image-2.6.24-30-sparc64-smp, linux-image-2.6.24-30-hppa64, linux-image-2.6.24-30-powerpc64-smp, linux-image-2.6.24-30-powerpc, linux-image-2.6.24-30-lpiacompat, linux-image-2.6.24-30-itanium, linux-image-2.6.24-30-386, linux-image-2.6.24-30-virtual, linux-image-2.6.24-30-powerpc-smp, linux-image-2.6.24-30-lpia
  • USN-1322-1: linux-image-3.0.0-14-powerpc, linux-image-3.0.0-14-generic, linux-image-3.0.0-14-server, linux-image-3.0.0-14-virtual, linux-image-3.0.0-14-generic-pae, linux-image-3.0.0-14-powerpc-smp, linux-image-3.0.0-14-omap, linux-image-3.0.0-14-powerpc64-smp, linux
  • USN-1287-1: linux-ti-omap4, linux-image-3.0.0-1206-omap4
  • USN-1313-1: linux-image-3.0.0-14-generic, linux-lts-backport-oneiric, linux-image-3.0.0-14-server, linux-image-3.0.0-14-virtual, linux-image-3.0.0-14-generic-pae

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