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==========================================================================
Ubuntu Security Notice USN-2441-1
December 12, 2014

linux vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 10.04 LTS

Summary:

Several security issues were fixed in the kernel.

Software Description:
- linux: Linux kernel

Details:

An information leak in the Linux kernel was discovered that could leak the
high 16 bits of the kernel stack address on 32-bit Kernel Virtual Machine
(KVM) paravirt guests. A user in the guest OS could exploit this leak to
obtain information that could potentially be used to aid in attacking the
kernel. (CVE-2014-8134)

A flaw in the handling of malformed ASCONF chunks by SCTP (Stream Control
Transmission Protocol) implementation in the Linux kernel was discovered. A
remote attacker could exploit this flaw to cause a denial of service
(system crash). (CVE-2014-3673)

A flaw in the handling of duplicate ASCONF chunks by SCTP (Stream Control
Transmission Protocol) implementation in the Linux kernel was discovered. A
remote attacker could exploit this flaw to cause a denial of service
(panic). (CVE-2014-3687)

It was discovered that excessive queuing by SCTP (Stream Control
Transmission Protocol) implementation in the Linux kernel can cause memory
pressure. A remote attacker could exploit this flaw to cause a denial of
service. (CVE-2014-3688)

A null pointer dereference flaw was discovered in the the Linux kernel's
SCTP implementation when ASCONF is used. A remote attacker could exploit
this flaw to cause a denial of service (system crash) via a malformed INIT
chunk. (CVE-2014-7841)

Jouni Malinen reported a flaw in the handling of fragmentation in the
mac8Linux subsystem of the kernel. A remote attacker could exploit this
flaw to obtain potential sensitive cleartext information by reading
packets. (CVE-2014-8709)

A stack buffer overflow was discovered in the ioctl command handling for
the Technotrend/Hauppauge USB DEC devices driver. A local user could
exploit this flaw to cause a denial of service (system crash) or possibly
gain privileges. (CVE-2014-8884)

Andy Lutomirski discovered that the Linux kernel does not properly handle
faults associated with the Stack Segment (SS) register on the x86
architecture. A local attacker could exploit this flaw to cause a denial of
service (panic). (CVE-2014-9090)

Update instructions:

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

Ubuntu 10.04 LTS:
  linux-image-2.6.32-70-386       2.6.32-70.137
  linux-image-2.6.32-70-generic   2.6.32-70.137
  linux-image-2.6.32-70-generic-pae  2.6.32-70.137
  linux-image-2.6.32-70-ia64      2.6.32-70.137
  linux-image-2.6.32-70-lpia      2.6.32-70.137
  linux-image-2.6.32-70-powerpc   2.6.32-70.137
  linux-image-2.6.32-70-powerpc-smp  2.6.32-70.137
  linux-image-2.6.32-70-powerpc64-smp  2.6.32-70.137
  linux-image-2.6.32-70-preempt   2.6.32-70.137
  linux-image-2.6.32-70-server    2.6.32-70.137
  linux-image-2.6.32-70-sparc64   2.6.32-70.137
  linux-image-2.6.32-70-sparc64-smp  2.6.32-70.137
  linux-image-2.6.32-70-versatile  2.6.32-70.137
  linux-image-2.6.32-70-virtual   2.6.32-70.137

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:
  http://www.ubuntu.com/usn/usn-2441-1
  CVE-2014-3673, CVE-2014-3687, CVE-2014-3688, CVE-2014-7841,
  CVE-2014-8134, CVE-2014-8709, CVE-2014-8884, CVE-2014-9090

Package Information:
  https://launchpad.net/ubuntu/+source/linux/2.6.32-70.137



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