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-2441-1: Linux kernel vulnerabilities

12 December 2014

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

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)

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-2442-1: linux-image-2.6.32-374-ec2, linux-ec2
  • USN-2445-1: linux-image-3.13.0-43-generic, linux-lts-trusty, linux-image-3.13.0-43-generic-lpae
  • USN-2447-1: linux-image-3.16.0-28-lowlatency, linux-image-3.16.0-28-powerpc64-emb, linux-image-3.16.0-28-powerpc64-smp, linux-image-3.16.0-28-powerpc-e500mc, linux-image-3.16.0-28-generic, linux-image-3.16.0-28-generic-lpae, linux-image-3.16.0-28-powerpc-smp, linux-lts-utopic, linux-image-extra-3.16.0-28-generic
  • USN-2417-1: linux-image-3.2.0-72-generic, linux-image-3.2.0-72-powerpc-smp, linux-image-3.2.0-72-powerpc64-smp, linux-image-3.2.0-72-highbank, linux-image-3.2.0-72-generic-pae, linux-image-3.2.0-72-omap, linux, linux-image-3.2.0-72-virtual
  • USN-2448-1: linux-image-3.16.0-28-lowlatency, linux-image-3.16.0-28-powerpc64-emb, linux-image-3.16.0-28-powerpc64-smp, linux-image-3.16.0-28-powerpc-e500mc, linux-image-3.16.0-28-generic, linux-image-3.16.0-28-generic-lpae, linux-image-3.16.0-28-powerpc-smp, linux
  • USN-2446-1: linux-image-3.13.0-43-powerpc64-emb, linux-image-3.13.0-43-powerpc-smp, linux-image-3.13.0-43-powerpc64-smp, linux-image-3.13.0-43-lowlatency, linux, linux-image-3.13.0-43-powerpc-e500mc, linux-image-3.13.0-43-generic-lpae, linux-image-3.13.0-43-generic, linux-image-3.13.0-43-powerpc-e500, linux-image-extra-3.13.0-43-generic
  • USN-2418-1: linux-ti-omap4, linux-image-3.2.0-1456-omap4
  • USN-2468-1: linux-image-3.16.0-29-lowlatency, linux-image-3.16.0-29-powerpc64-smp, linux-image-3.16.0-29-powerpc-smp, linux-image-3.16.0-29-powerpc64-emb, linux-image-3.16.0-29-generic, linux-image-3.16.0-29-generic-lpae, linux, linux-image-3.16.0-29-powerpc-e500mc
  • USN-2467-1: linux-image-3.16.0-29-lowlatency, linux-image-3.16.0-29-powerpc64-smp, linux-image-extra-3.16.0-29-generic, linux-image-3.16.0-29-powerpc-smp, linux-image-3.16.0-29-powerpc64-emb, linux-image-3.16.0-29-generic, linux-image-3.16.0-29-generic-lpae, linux-lts-utopic, linux-image-3.16.0-29-powerpc-e500mc
  • USN-2465-1: linux-image-3.13.0-44-generic-lpae, linux-lts-trusty, linux-image-3.13.0-44-generic
  • USN-2443-1: linux-image-3.2.0-74-omap, linux-image-3.2.0-74-generic-pae, linux-image-3.2.0-74-powerpc-smp, linux-image-3.2.0-74-powerpc64-smp, linux-image-3.2.0-74-highbank, linux-image-3.2.0-74-virtual, linux, linux-image-3.2.0-74-generic
  • USN-2466-1: linux-image-3.13.0-44-generic-lpae, linux-image-3.13.0-44-lowlatency, linux-image-3.13.0-44-powerpc-e500mc, linux-image-3.13.0-44-powerpc64-emb, linux-image-3.13.0-44-generic, linux-image-3.13.0-44-powerpc-e500, linux-image-3.13.0-44-powerpc-smp, linux, linux-image-extra-3.13.0-44-generic, linux-image-3.13.0-44-powerpc64-smp
  • USN-2444-1: linux-image-3.2.0-1457-omap4, linux-ti-omap4
  • USN-2464-1: linux-ti-omap4, linux-image-3.2.0-1458-omap4
  • USN-2175-1: linux-image-3.5.0-49-generic, linux-lts-quantal
  • USN-2177-1: linux-image-3.11.0-20-generic-lpae, linux-image-3.11.0-20-generic, linux-lts-saucy
  • USN-2221-1: linux-image-3.2.0-63-powerpc64-smp, linux-image-3.2.0-63-generic, linux-image-3.2.0-63-generic-pae, linux-image-3.2.0-63-powerpc-smp, linux-image-3.2.0-63-virtual, linux-image-3.2.0-63-omap, linux, linux-image-3.2.0-63-highbank
  • USN-2227-1: linux-image-3.2.0-1446-omap4, linux-ti-omap4

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