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-1311-1: 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

Peter Huewe discovered an information leak in the handling of reading
security-related TPM data. A local, unprivileged user could read the
results of a previous TPM command. (CVE-2011-1162)

Zheng Liu discovered a flaw in how the ext4 filesystem splits extents. A
local unprivileged attacker could exploit this to crash the system, leading
to a denial of service. (CVE-2011-3638)

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)

A bug was found in the way headroom check was performed in
udp6_ufo_fragment() function. A remote attacker could use this flaw to
crash the system. (CVE-2011-4326)

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 10.04

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

ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed. If
you use linux-restricted-modules, you have to update that package as
well to get modules which work with the new kernel version. Unless you
manually uninstalled the standard kernel metapackages (e.g. linux-generic,
linux-server, linux-powerpc), a standard system upgrade will automatically
perform this as well.

References

Related notices

  • USN-1294-1: linux-lts-backport-oneiric, linux-image-3.0.0-13-virtual, linux-image-3.0.0-13-server, linux-image-3.0.0-13-generic-pae, linux-image-3.0.0-13-generic
  • USN-1299-1: linux-image-2.6.32-341-ec2, linux-ec2
  • USN-1319-1: linux-image-2.6.38-1209-omap4, linux-ti-omap4
  • USN-1318-1: linux-image-2.6.31-612-imx51, linux-fsl-imx51
  • USN-1337-1: linux-image-2.6.38-13-virtual, linux-image-2.6.38-13-server, linux-lts-backport-natty, linux-image-2.6.38-13-generic, linux-image-2.6.38-13-generic-pae
  • USN-1341-1: linux, linux-image-2.6.35-32-powerpc, linux-image-2.6.35-32-server, linux-image-2.6.35-32-omap, linux-image-2.6.35-32-powerpc64-smp, linux-image-2.6.35-32-virtual, linux-image-2.6.35-32-generic, linux-image-2.6.35-32-generic-pae, linux-image-2.6.35-32-powerpc-smp, linux-image-2.6.35-32-versatile
  • USN-1332-1: linux-image-2.6.35-32-server, linux-image-2.6.35-32-virtual, linux-image-2.6.35-32-generic, linux-image-2.6.35-32-generic-pae, linux-lts-backport-maverick
  • USN-1325-1: linux-ti-omap4, linux-image-2.6.35-903-omap4
  • USN-1303-1: linux-image-2.6.32-421-dove, linux-mvl-dove
  • USN-1275-1: linux, linux-image-3.0.0-13-powerpc-smp, linux-image-3.0.0-13-virtual, linux-image-3.0.0-13-powerpc, linux-image-3.0.0-13-omap, linux-image-3.0.0-13-server, linux-image-3.0.0-13-generic-pae, linux-image-3.0.0-13-powerpc64-smp, linux-image-3.0.0-13-generic
  • USN-1323-1: linux-image-2.6.24-30-lpiacompat, linux-image-2.6.24-30-powerpc, linux-image-2.6.24-30-lpia, linux-image-2.6.24-30-generic, linux-image-2.6.24-30-xen, linux-image-2.6.24-30-server, linux-image-2.6.24-30-openvz, linux-image-2.6.24-30-sparc64, linux, linux-image-2.6.24-30-386, linux-image-2.6.24-30-virtual, linux-image-2.6.24-30-mckinley, linux-image-2.6.24-30-sparc64-smp, linux-image-2.6.24-30-hppa32, linux-image-2.6.24-30-rt, linux-image-2.6.24-30-hppa64, linux-image-2.6.24-30-itanium, linux-image-2.6.24-30-powerpc-smp, linux-image-2.6.24-30-powerpc64-smp
  • USN-1260-1: linux-image-3.0.0-1206-omap4, linux-ti-omap4
  • USN-1345-1: linux, linux-image-2.6.38-13-server, linux-image-2.6.38-13-virtual, linux-image-2.6.38-13-powerpc-smp, linux-image-2.6.38-13-powerpc64-smp, linux-image-2.6.38-13-omap, linux-image-2.6.38-13-generic, linux-image-2.6.38-13-powerpc, linux-image-2.6.38-13-generic-pae, linux-image-2.6.38-13-versatile
  • USN-1292-1: linux-image-2.6.35-31-generic-pae, linux-image-2.6.35-31-generic, linux-lts-backport-maverick, linux-image-2.6.35-31-virtual, linux-image-2.6.35-31-server
  • USN-1302-1: linux-ti-omap4, linux-image-2.6.35-903-omap4
  • USN-1340-1: linux-image-3.0.0-15-server, linux-lts-backport-oneiric, linux-image-3.0.0-15-generic-pae, linux-image-3.0.0-15-generic, linux-image-3.0.0-15-virtual
  • USN-1301-1: linux-image-2.6.38-13-virtual, linux-image-2.6.38-13-server, linux-lts-backport-natty, linux-image-2.6.38-13-generic, linux-image-2.6.38-13-generic-pae
  • USN-1336-1: linux, linux-image-3.0.0-15-server, linux-image-3.0.0-15-powerpc, linux-image-3.0.0-15-generic-pae, linux-image-3.0.0-15-powerpc-smp, linux-image-3.0.0-15-powerpc64-smp, linux-image-3.0.0-15-omap, linux-image-3.0.0-15-generic, linux-image-3.0.0-15-virtual
  • USN-1312-1: linux, linux-image-2.6.38-13-server, linux-image-2.6.38-13-virtual, linux-image-2.6.38-13-powerpc-smp, linux-image-2.6.38-13-powerpc64-smp, linux-image-2.6.38-13-omap, linux-image-2.6.38-13-generic, linux-image-2.6.38-13-powerpc, linux-image-2.6.38-13-generic-pae, linux-image-2.6.38-13-versatile
  • USN-1293-1: linux, linux-image-2.6.35-31-versatile, linux-image-2.6.35-31-powerpc-smp, linux-image-2.6.35-31-generic-pae, linux-image-2.6.35-31-powerpc64-smp, linux-image-2.6.35-31-omap, linux-image-2.6.35-31-virtual, linux-image-2.6.35-31-powerpc, linux-image-2.6.35-31-generic, linux-image-2.6.35-31-server
  • USN-1330-1: linux-image-3.0.0-1206-omap4, linux-ti-omap4
  • USN-1300-1: linux-image-2.6.31-612-imx51, linux-fsl-imx51
  • USN-1304-1: linux-image-2.6.38-1209-omap4, linux-ti-omap4
  • USN-1291-1: linux-image-2.6.24-30-lpiacompat, linux-image-2.6.24-30-powerpc, linux-image-2.6.24-30-lpia, linux-image-2.6.24-30-generic, linux-image-2.6.24-30-xen, linux-image-2.6.24-30-server, linux-image-2.6.24-30-openvz, linux-image-2.6.24-30-sparc64, linux, linux-image-2.6.24-30-386, linux-image-2.6.24-30-virtual, linux-image-2.6.24-30-mckinley, linux-image-2.6.24-30-sparc64-smp, linux-image-2.6.24-30-hppa32, linux-image-2.6.24-30-rt, linux-image-2.6.24-30-hppa64, linux-image-2.6.24-30-itanium, linux-image-2.6.24-30-powerpc-smp, linux-image-2.6.24-30-powerpc64-smp
  • USN-1322-1: linux, linux-image-3.0.0-14-powerpc-smp, linux-image-3.0.0-14-server, linux-image-3.0.0-14-virtual, linux-image-3.0.0-14-powerpc, linux-image-3.0.0-14-omap, linux-image-3.0.0-14-generic-pae, linux-image-3.0.0-14-generic, linux-image-3.0.0-14-powerpc64-smp
  • USN-1287-1: linux-image-3.0.0-1206-omap4, linux-ti-omap4
  • USN-1313-1: 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, linux-image-3.0.0-14-generic
  • USN-1256-1: linux-image-2.6.38-12-virtual, linux-image-2.6.38-12-generic, linux-image-2.6.38-12-generic-pae, linux-lts-backport-natty, linux-image-2.6.38-12-server
  • USN-1193-1: linux, linux-image-2.6.38-11-powerpc-smp, linux-image-2.6.38-11-powerpc, linux-image-2.6.38-11-versatile, linux-image-2.6.38-11-server, linux-image-2.6.38-11-generic, linux-image-2.6.38-11-generic-pae, linux-image-2.6.38-11-virtual, linux-image-2.6.38-11-powerpc64-smp, linux-image-2.6.38-11-omap

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