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USN-3187-2: Linux kernel (OMAP4) vulnerabilities

9 February 2017

Several security issues were fixed in the kernel.

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Releases

Packages

Details

Andrey Konovalov discovered that the SCTP implementation in the Linux
kernel improperly handled validation of incoming data. A remote attacker
could use this to cause a denial of service (system crash). (CVE-2016-9555)

It was discovered that multiple memory leaks existed in the XFS
implementation in the Linux kernel. A local attacker could use this to
cause a denial of service (memory consumption). (CVE-2016-9685)

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 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.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.

Related notices

  • USN-3187-1: linux-image-3.2.0-121-highbank, linux-image-generic, linux-image-omap, linux-image-3.2.0-121-virtual, linux, linux-image-generic-pae, linux-image-3.2.0-121-omap, linux-image-highbank, linux-image-powerpc-smp, linux-image-3.2.0-121-generic, linux-image-3.2.0-121-powerpc-smp, linux-image-powerpc64-smp, linux-image-3.2.0-121-generic-pae, linux-image-3.2.0-121-powerpc64-smp, linux-image-virtual
  • USN-3162-1: linux-image-generic, linux-image-4.8.0-32-lowlatency, linux-image-4.8.0-32-powerpc-smp, linux, linux-image-4.8.0-32-powerpc64-emb, linux-image-powerpc-e500mc, linux-image-4.8.0-32-generic-lpae, linux-image-4.8.0-32-powerpc-e500mc, linux-image-powerpc-smp, linux-image-lowlatency, linux-image-generic-lpae, linux-image-powerpc64-emb, linux-image-4.8.0-32-generic
  • USN-3162-2: linux-image-4.8.0-1021-raspi2, linux-raspi2, linux-image-raspi2
  • USN-3161-4: linux-image-4.4.0-1042-snapdragon, linux-snapdragon
  • USN-3161-1: linux-image-4.4.0-57-generic-lpae, linux-image-4.4.0-57-generic, linux-image-4.4.0-57-powerpc-e500mc, linux, linux-image-4.4.0-57-powerpc64-smp, linux-image-4.4.0-57-powerpc-smp, linux-image-4.4.0-57-lowlatency, linux-image-4.4.0-57-powerpc64-emb, linux-image-extra-4.4.0-57-generic
  • USN-3161-3: linux-raspi2, linux-image-4.4.0-1038-raspi2
  • USN-3161-2: linux-image-4.4.0-57-generic-lpae, linux-image-4.4.0-57-generic, linux-image-4.4.0-57-powerpc-e500mc, linux-image-4.4.0-57-powerpc64-smp, linux-image-4.4.0-57-powerpc-smp, linux-image-4.4.0-57-lowlatency, linux-lts-xenial, linux-image-4.4.0-57-powerpc64-emb, linux-image-extra-4.4.0-57-generic
  • USN-3188-1: linux-image-3.13.0-108-generic-lpae, linux-image-3.13.0-108-generic, linux-image-3.13.0-108-powerpc64-emb, linux-image-3.13.0-108-powerpc64-smp, linux, linux-image-3.13.0-108-powerpc-e500, linux-image-3.13.0-108-lowlatency, linux-image-3.13.0-108-powerpc-smp, linux-image-3.13.0-108-powerpc-e500mc, linux-image-extra-3.13.0-108-generic
  • USN-3188-2: linux-image-3.13.0-108-generic-lpae, linux-image-3.13.0-108-generic, linux-lts-trusty, linux-image-generic-lts-trusty, linux-image-generic-lpae-lts-trusty