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USN-1554-1: Linux kernel vulnerability

5 September 2012

The system could be made to crash under certain conditions.

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Releases

Packages

Details

A flaw was found in the Linux kernel's Reliable Datagram Sockets (RDS)
protocol implementation. A local, unprivileged user could use this flaw to
cause a denial of service. (CVE-2012-2372)

Mathias Krause discovered an information leak in the Linux kernel's TUN/TAP
device driver. A local user could exploit this flaw to examine part of the
kernel's stack memory. (CVE-2012-6547)

A flaw was found in Linux kernel's validation of CIPSO (Common IP Security
Option) options set from userspace. A local user that can set a socket's
CIPSO options could exploit this flaw to cause a denial of service (crash
the system). (CVE-2013-0310)

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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.

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Update instructions

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

Ubuntu 11.10

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-1531-1: linux-image-2.6.38-15-powerpc, linux-image-2.6.38-15-virtual, linux-image-2.6.38-15-generic, linux, linux-image-2.6.38-15-powerpc64-smp, linux-image-2.6.38-15-powerpc-smp, linux-image-2.6.38-15-server, linux-image-2.6.38-15-versatile, linux-image-2.6.38-15-generic-pae, linux-image-2.6.38-15-omap
  • USN-1529-1: linux-image-3.2.0-29-omap, linux-image-3.2.0-29-powerpc64-smp, linux-image-3.2.0-29-highbank, linux-image-3.2.0-29-powerpc-smp, linux-image-3.2.0-29-generic, linux-image-3.2.0-29-virtual, linux-image-3.2.0-29-generic-pae, linux
  • USN-1556-1: linux-ec2, linux-image-2.6.32-347-ec2
  • USN-1558-1: linux-ti-omap4, linux-image-3.0.0-1215-omap4
  • USN-1514-1: linux-image-3.2.0-1417-omap4, linux-ti-omap4
  • USN-1563-1: linux-image-3.0.0-25-server, linux-image-3.0.0-25-virtual, linux-image-3.0.0-25-generic-pae, linux-image-3.0.0-25-generic, linux-lts-backport-oneiric
  • USN-1555-1: linux-image-2.6.32-42-generic-pae, linux-image-2.6.32-42-virtual, linux-image-2.6.32-42-versatile, linux-image-2.6.32-42-powerpc-smp, linux-image-2.6.32-42-sparc64-smp, linux-image-2.6.32-42-powerpc, linux-image-2.6.32-42-powerpc64-smp, linux-image-2.6.32-42-ia64, linux-image-2.6.32-42-386, linux-image-2.6.32-42-server, linux-image-2.6.32-42-preempt, linux-image-2.6.32-42-lpia, linux-image-2.6.32-42-generic, linux, linux-image-2.6.32-42-sparc64
  • USN-1538-1: linux-image-2.6.38-15-virtual, linux-image-2.6.38-15-generic, linux-image-2.6.38-15-server, linux-lts-backport-natty, linux-image-2.6.38-15-generic-pae
  • USN-1530-1: linux-image-2.6.38-1209-omap4, linux-ti-omap4
  • USN-1653-1: linux-ec2, linux-image-2.6.32-350-ec2
  • USN-1651-1: linux-image-2.6.32-45-versatile, linux-image-2.6.32-45-sparc64-smp, linux-image-2.6.32-45-powerpc-smp, linux-image-2.6.32-45-386, linux-image-2.6.32-45-powerpc64-smp, linux-image-2.6.32-45-ia64, linux-image-2.6.32-45-powerpc, linux-image-2.6.32-45-virtual, linux-image-2.6.32-45-lpia, linux-image-2.6.32-45-sparc64, linux-image-2.6.32-45-server, linux-image-2.6.32-45-preempt, linux, linux-image-2.6.32-45-generic, linux-image-2.6.32-45-generic-pae
  • USN-1579-1: linux-image-3.2.0-31-virtual, linux-image-3.2.0-31-powerpc-smp, linux-image-3.2.0-31-generic-pae, linux-image-3.2.0-31-generic, linux-image-3.2.0-31-omap, linux-image-3.2.0-31-highbank, linux, linux-image-3.2.0-31-powerpc64-smp
  • USN-1580-1: linux-ti-omap4, linux-image-3.2.0-1419-omap4

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