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Ubuntu 12.04: USN-2929-2 Critical: Kernel Denial Of Service Fixes

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Calendar Grey March 14, 2016
Scroller Ubuntu
Various vulnerabilities in the Linux kernel have been rectified to safeguard against service interruptions and unauthorized intrusions.
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:

Ben Hawkes discovered that the Linux netfilter implementation did not

correctly perform validation when handling IPT_SO_SET_REPLACE events. A

local unprivileged attacker could use this to cause a denial of service

(system crash) or possibly execute arbitrary code with administrative

privileges. (CVE-2016-3134)

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 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 ke...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service critical Ubuntu kernel 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-3.13.0-83-generic   3.13.0-83.127~precise1
  linux-image-3.13.0-83-generic-lpae  3.13.0-83.127~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-2929-2

https://ubuntu.com/security/notices/USN-2929-1

CVE-2013-4312, CVE-2015-7566, CVE-2015-7833, CVE-2016-0723,

CVE-2016-2384, 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-2016-3134

Severity
critical
Lowest
Low
Medium
High
Critical

March 14, 2016

Topics%20covered

Topics Covered

security advisory denial of service critical Ubuntu kernel system crash linux-lts-trusty

Package Information

https://launchpad.net/ubuntu/+source/linux-lts-trusty/3.13.0-83.127~precise1

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