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Ubuntu 12.04 LTS: USN-3021-1 Moderate: Kernel Security Issues

ubuntu
Calendar Grey June 28, 2016
Scroller Ubuntu
Uncover patches addressing vulnerabilities within the kernel for Ubuntu 12.04 LTS, particularly those rectified in June 2016.
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 CDC Network Control Model USB driver

in the Linux kernel did not cancel work events queued if a later error

occurred, resulting in a use-after-free. An attacker with physical access

could use this to cause a denial of service (system crash). (CVE-2016-3951)

Kangjie Lu discovered an information leak in the core USB implementation in

the Linux kernel. A local attacker could use this to obtain potentially

sensitive information from kernel memory. (CVE-2016-4482)

Jann Horn discovered that the InfiniBand interfaces within the Linux kernel

could be coerced into overwriting kernel memory. A local unprivileged

attacker could use this to possibly gain administrative privileges on

systems where InifiniBand related kernel modules are loaded.

(CVE-2016-4565)

Kangjie Lu discovered an information leak in the timer handling

implementation in the Advance...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service information leak kernel system update ubuntu use after free

Update Instructions

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

Ubuntu 12.04 LTS:
  linux-image-3.2.0-105-generic   3.2.0-105.146
  linux-image-3.2.0-105-generic-pae  3.2.0-105.146
  linux-image-3.2.0-105-highbank  3.2.0-105.146
  linux-image-3.2.0-105-omap      3.2.0-105.146
  linux-image-3.2.0-105-powerpc-smp  3.2.0-105.146
  linux-image-3.2.0-105-powerpc64-smp  3.2.0-105.146
  linux-image-3.2.0-105-virtual   3.2.0-105.146

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-3021-1

CVE-2016-3951, CVE-2016-4482, CVE-2016-4565, CVE-2016-4569,

CVE-2016-4578, CVE-2016-4580, CVE-2016-4805, CVE-2016-4913

June 27, 2016

Topics%20covered

Topics Covered

security advisory denial of service information leak kernel system update ubuntu use after free

Package Information

https://launchpad.net/ubuntu/+source/linux/3.2.0-105.146

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