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Ubuntu 12.04 LTS: USN-3187-1 Critical: Kernel DoS and Memory Issues

ubuntu
Calendar Grey February 3, 2017
Scroller Ubuntu Esm H88
Fedora alert FSA-2023-0123 highlights kernel vulnerabilities, addressing DoS and buffer overflow resolutions. Ensure your system is updated immediately.
Several security issues were fixed in the kernel.

Summary

Several security issues were fixed in the kernel.

Software Description:

- linux: Linux kernel

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)

Topics%20covered

Topics Covered

security advisory critical Ubuntu memory leak kernel Denial of Service

Update Instructions

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

Ubuntu 12.04 LTS:
  linux-image-3.2.0-121-generic   3.2.0-121.164
  linux-image-3.2.0-121-generic-pae  3.2.0-121.164
  linux-image-3.2.0-121-highbank  3.2.0-121.164
  linux-image-3.2.0-121-omap      3.2.0-121.164
  linux-image-3.2.0-121-powerpc-smp  3.2.0-121.164
  linux-image-3.2.0-121-powerpc64-smp  3.2.0-121.164
  linux-image-3.2.0-121-virtual   3.2.0-121.164
  linux-image-generic             3.2.0.121.136
  linux-image-generic-pae         3.2.0.121.136
  linux-image-highbank            3.2.0.121.136
  linux-image-omap                3.2.0.121.136
  linux-image-powerpc-smp         3.2.0.121.136
  linux-image-powerpc64-smp       3.2.0.121.136
  linux-image-virtual             3.2.0.121.136

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.

References

https://ubuntu.com/security/notices/USN-3187-1

CVE-2016-9555, CVE-2016-9685

Severity
critical
Lowest
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Critical

February 03, 2017

Topics%20covered

Topics Covered

security advisory critical Ubuntu memory leak kernel Denial of Service

Package Information

https://launchpad.net/ubuntu/+source/linux/3.2.0-121.164

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