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Ubuntu 12.04 LTS USN-2968-2 Critical: Kernel Denial Of Service

ubuntu
Calendar Grey May 9, 2016
Scroller Ubuntu
This announcement pertains to significant vulnerability patches in the Ubuntu 12.04 LTS kernel, which cover potential denial of service threats.
Several security issues were fixed in the kernel.

Summary

Several security issues were fixed in the kernel.

Software Description:

- linux-lts-trusty: Linux hardware enablement kernel from Trusty for Precise

Details:

USN-2968-1 fixed vulnerabilities in the Linux kernel for Ubuntu

14.04 LTS. This update provides the corresponding updates for the

Linux Hardware Enablement (HWE) kernel from Ubuntu 14.04 LTS for

Ubuntu 12.04 LTS.

Ralf Spenneberg discovered that the Aiptek Tablet USB device driver in the

Linux kernel did not properly sanity check the endpoints reported by the

device. An attacker with physical access could cause a denial of service

(system crash). (CVE-2015-7515)

Ben Hawkes discovered that the Linux kernel's AIO interface allowed single

writes greater than 2GB, which could cause an integer overflow when writing

to certain filesystems, socket or device types. A local attacker could this

to cause a denial of service (system crash) or possibly execute arbitrary

code. (CVE-2015-8830)

It was discovered that the Linux kernel di...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory critical issue Ubuntu kernel update instructions system crash linux-lts-trusty

Update Instructions

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

Ubuntu 12.04 LTS:
  linux-image-3.13.0-86-generic   3.13.0-86.130~precise1
  linux-image-3.13.0-86-generic-lpae  3.13.0-86.130~precise1

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-2968-2

https://ubuntu.com/security/notices/USN-2968-1

CVE-2015-7515, CVE-2015-8830, CVE-2016-0774, CVE-2016-0821,

CVE-2016-2184, CVE-2016-2185, CVE-2016-2186, CVE-2016-2188,

CVE-2016-3136, CVE-2016-3137, CVE-2016-3138, CVE-2016-3140,

CVE-2016-3156, CVE-2016-3157, CVE-2016-3689

Severity
critical
Lowest
Low
Medium
High
Critical

May 09, 2016

Topics%20covered

Topics Covered

security advisory critical issue Ubuntu kernel update instructions system crash linux-lts-trusty

Package Information

https://launchpad.net/ubuntu/+source/linux-lts-trusty/3.13.0-86.130~precise1

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