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Ubuntu 12.04 LTS: USN-2967-1 Critical Denial of Service Flaws

ubuntu
Calendar Grey May 9, 2016
Scroller Ubuntu
Addressed multiple Linux kernel vulnerabilities in Ubuntu that posed Denial of Service risks, along with detailed update guidelines.
Several security issues were fixed in the kernel.

Summary

Several security issues were fixed in the kernel.

Software Description:

- linux: Linux kernel

Details:

It was discovered that the Linux kernel did not properly enforce rlimits

for file descriptors sent over UNIX domain sockets. A local attacker could

use this to cause a denial of service. (CVE-2013-4312)

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)

Ralf Spenneberg discovered that the USB driver for Clie devices 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-2015-7566)

Ralf Spenneberg discovered that the usbvision driver in the Linux kernel

did not properly sanity check the interfaces and endpoints reported by the

device. An attacker with physical ...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service security update critical bug fix ubuntu linux kernel

Update Instructions

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

Ubuntu 12.04 LTS:
  linux-image-3.2.0-102-generic   3.2.0-102.142
  linux-image-3.2.0-102-generic-pae  3.2.0-102.142
  linux-image-3.2.0-102-highbank  3.2.0-102.142
  linux-image-3.2.0-102-omap      3.2.0-102.142
  linux-image-3.2.0-102-powerpc-smp  3.2.0-102.142
  linux-image-3.2.0-102-powerpc64-smp  3.2.0-102.142
  linux-image-3.2.0-102-virtual   3.2.0-102.142

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-2967-1

CVE-2013-4312, CVE-2015-7515, CVE-2015-7566, CVE-2015-7833,

CVE-2015-8767, CVE-2015-8812, CVE-2016-0723, CVE-2016-0774,

CVE-2016-0821, CVE-2016-2069, CVE-2016-2543, CVE-2016-2544,

CVE-2016-2545, CVE-2016-2546, CVE-2016-2547, CVE-2016-2548,

CVE-2016-2549, CVE-2016-2782, CVE-2016-2847

Severity
critical
Lowest
Low
Medium
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Critical

May 09, 2016

Topics%20covered

Topics Covered

security advisory denial of service security update critical bug fix ubuntu linux kernel

Package Information

https://launchpad.net/ubuntu/+source/linux/3.2.0-102.142

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