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Ubuntu 12.04 ESM USN-3406-2 Critical: Kernel Dos and Info Leakage

ubuntu
Calendar Grey August 29, 2017
Dist Ubuntu Esm H88
Latest patches tackle several core concerns in Ubuntu Trusty HWE, enhancing overall security and reliability. Discover more details.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

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

Details:

USN-3406-1 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 ESM.

It was discovered that an out of bounds read vulnerability existed in the

associative array implementation in the Linux kernel. A local attacker

could use this to cause a denial of service (system crash) or expose

sensitive information. (CVE-2016-7914)

It was discovered that a NULL pointer dereference existed in the Direct

Rendering Manager (DRM) driver for VMWare devices in the Linux kernel. A

local attacker could use this to cause a denial of service (system crash).

(CVE-2017-7261)

It was discovered that the USB Cypress HID drivers for the Linux kernel did

not properly validate reported information f...

Read the Full Advisory

Update Instructions

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

Ubuntu 12.04 ESM:
  linux-image-3.13.0-129-generic  3.13.0-129.178~precise1
  linux-image-3.13.0-129-generic-lpae  3.13.0-129.178~precise1
  linux-image-generic-lpae-lts-trusty  3.13.0.129.119
  linux-image-generic-lts-trusty  3.13.0.129.119

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-3406-2

https://ubuntu.com/security/notices/USN-3406-1

CVE-2016-7914, CVE-2017-7261, CVE-2017-7273, CVE-2017-7487,

CVE-2017-7495, CVE-2017-7616

Severity
critical
Lowest
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Critical

August 29, 2017

Package Information

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