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Ubuntu 12.04 ESM USN-3360-2 Moderate: Kernel Memory Exposure Advisory

ubuntu
Calendar Grey July 21, 2017
Dist Ubuntu Esm H88
Numerous vulnerabilities in the Linux kernel have been rectified for Ubuntu 12.04 ESM, targeting a range of security threats that necessitate urgent patching.
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

Details:

USN-3360-1 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 the Linux kernel did not properly initialize a Wake-on-Lan data structure. A local attacker could use this to expose sensitive

information (kernel memory). (CVE-2014-9900)

It was discovered that the Linux kernel did not properly restrict access to

/proc/iomem. A local attacker could use this to expose sensitive

information. (CVE-2015-8944)

It was discovered that a use-after-free vulnerability existed in the

performance events and counters subsystem of the Linux kernel for ARM64. A

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

or poss...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service ubuntu linux kernel kernel exposure attacker access

Update Instructions

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

Ubuntu 12.04 ESM:
  linux-image-3.13.0-125-generic  3.13.0-125.174~precise1
  linux-image-3.13.0-125-generic-lpae  3.13.0-125.174~precise1
  linux-image-generic-lpae-lts-trusty  3.13.0.125.116
  linux-image-generic-lts-trusty  3.13.0.125.116

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-3360-2

https://ubuntu.com/security/notices/USN-3360-1

CVE-2014-9900, CVE-2015-8944, CVE-2015-8955, CVE-2015-8962,

CVE-2015-8963, CVE-2015-8964, CVE-2015-8966, CVE-2015-8967,

CVE-2016-10088, CVE-2017-1000380, CVE-2017-7346, CVE-2017-7895,

CVE-2017-8924, CVE-2017-8925, CVE-2017-9074, CVE-2017-9605

Severity
important
Lowest
Low
Medium
High
Critical

July 21, 2017

Topics%20covered

Topics Covered

security advisory denial of service ubuntu linux kernel kernel exposure attacker access

Package Information

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