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USN-1811-1: Linux kernel (OMAP4) vulnerabilities

1 May 2013

Several security issues were fixed in the kernel.

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Releases

Packages

Details

Mathias Krause discovered an information leak in the Linux kernel's UDF
file system implementation. A local user could exploit this flaw to examine
some of the kernel's heap memory. (CVE-2012-6548)

Mathias Krause discovered an information leak in the Linux kernel's ISO
9660 CDROM file system driver. A local user could exploit this flaw to
examine some of the kernel's heap memory. (CVE-2012-6549)

An integer overflow was discovered in the Direct Rendering Manager (DRM)
subsystem for the i915 video driver in the Linux kernel. A local user could
exploit this flaw to cause a denial of service (crash) or potentially
escalate privileges. (CVE-2013-0913)

Andrew Honig discovered a use after free error in guest OS time updates in
the Linux kernel's KVM (Kernel-based Virtual Machine). A privileged guest
user could exploit this flaw to escalate privilege to the host kernel
level. (CVE-2013-1797)

A format-string bug was discovered in the Linux kernel's ext3 filesystem
driver. A local user could exploit this flaw to possibly escalate
privileges on the system. (CVE-2013-1848)

A buffer overflow was discovered in the Linux Kernel's USB subsystem for
devices reporting the cdc-wdm class. A specially crafted USB device when
plugged-in could cause a denial of service (system crash) or possibly
execute arbitrary code. (CVE-2013-1860)

A flaw was discovered in the SCTP (stream control transfer protocol)
network protocol's handling of duplicate cookies in the Linux kernel. A
remote attacker could exploit this flaw to cause a denial of service
(system crash) on another remote user querying the SCTP connection.
(CVE-2013-2206)

An information leak in the Linux kernel's dcb netlink interface was
discovered. A local user could obtain sensitive information by examining
kernel stack memory. (CVE-2013-2634)

A kernel stack information leak was discovered in the RTNETLINK component
of the Linux kernel. A local user could read sensitive information from the
kernel stack. (CVE-2013-2635)

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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 12.04

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-1812-1: linux-image-3.5.0-28-generic, linux-lts-quantal
  • USN-1809-1: linux-image-3.2.0-41-powerpc-smp, linux-image-3.2.0-41-generic-pae, linux-image-3.2.0-41-generic, linux-image-3.2.0-41-highbank, linux-image-3.2.0-41-virtual, linux, linux-image-3.2.0-41-omap, linux-image-3.2.0-41-powerpc64-smp
  • USN-1813-1: linux-image-3.5.0-28-generic, linux-image-3.5.0-28-powerpc-smp, linux-image-3.5.0-28-highbank, linux-image-3.5.0-28-omap, linux-image-3.5.0-28-powerpc64-smp, linux
  • USN-1814-1: linux-ti-omap4, linux-image-3.5.0-223-omap4
  • USN-1805-1: linux-image-2.6.32-46-powerpc, linux-image-2.6.32-46-generic-pae, linux-image-2.6.32-46-powerpc64-smp, linux-image-2.6.32-46-powerpc-smp, linux-image-2.6.32-46-server, linux-image-2.6.32-46-sparc64-smp, linux-image-2.6.32-46-generic, linux-image-2.6.32-46-versatile, linux-image-2.6.32-46-386, linux-image-2.6.32-46-sparc64, linux-image-2.6.32-46-ia64, linux, linux-image-2.6.32-46-preempt, linux-image-2.6.32-46-lpia, linux-image-2.6.32-46-virtual
  • USN-1808-1: linux-image-2.6.32-351-ec2, linux-ec2
  • USN-1829-1: linux-image-2.6.32-352-ec2, linux-ec2
  • USN-1824-1: linux-image-2.6.32-47-server, linux-image-2.6.32-47-powerpc-smp, linux-image-2.6.32-47-powerpc64-smp, linux-image-2.6.32-47-sparc64-smp, linux-image-2.6.32-47-ia64, linux-image-2.6.32-47-lpia, linux-image-2.6.32-47-virtual, linux-image-2.6.32-47-sparc64, linux-image-2.6.32-47-386, linux-image-2.6.32-47-preempt, linux-image-2.6.32-47-generic, linux, linux-image-2.6.32-47-versatile, linux-image-2.6.32-47-powerpc, linux-image-2.6.32-47-generic-pae
  • USN-1940-1: linux-image-2.6.32-356-ec2, linux-ec2
  • USN-1939-1: linux-image-2.6.32-51-powerpc-smp, linux-image-2.6.32-51-generic-pae, linux-image-2.6.32-51-powerpc64-smp, linux-image-2.6.32-51-powerpc, linux-image-2.6.32-51-versatile, linux-image-2.6.32-51-lpia, linux-image-2.6.32-51-virtual, linux-image-2.6.32-51-ia64, linux-image-2.6.32-51-sparc64, linux-image-2.6.32-51-server, linux-image-2.6.32-51-sparc64-smp, linux-image-2.6.32-51-preempt, linux-image-2.6.32-51-generic, linux, linux-image-2.6.32-51-386

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