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Ubuntu 12.04 LTS: USN-3071-2 Critical: Linux Kernel Denial Of Service

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Calendar Grey August 29, 2016
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Critical updates for Ubuntu 12.04 LTS addressing important kernel vulnerabilities; essential to secure your system immediately.
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-3071-1 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.

Kangjie Lu discovered an information leak in the Reliable Datagram Sockets

(RDS) implementation in the Linux kernel. A local attacker could use this

to obtain potentially sensitive information from kernel memory.

(CVE-2016-5244)

Yue Cao et al discovered a flaw in the TCP implementation's handling of

challenge acks in the Linux kernel. A remote attacker could use this to

cause a denial of service (reset connection) or inject content into an TCP

stream. (CVE-2016-5696)

Pengfei Wang discovered a race condition in the MIC VOP driver in the Linux

kernel. A local attacker could use this to cause a denial of service

(s...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service information leak critical ubuntu linux kernel 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-3.13.0-95-generic   3.13.0-95.142~precise1
  linux-image-3.13.0-95-generic-lpae  3.13.0-95.142~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-3071-2

https://ubuntu.com/security/notices/USN-3071-1

CVE-2016-5244, CVE-2016-5696, CVE-2016-5728, CVE-2016-5828,

CVE-2016-5829

Severity
critical
Lowest
Low
Medium
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Critical

August 29, 2016

Topics%20covered

Topics Covered

security advisory denial of service information leak critical ubuntu linux kernel linux-lts-trusty

Package Information

https://launchpad.net/ubuntu/+source/linux-lts-trusty/3.13.0-95.142~precise1

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