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Ubuntu 14.04 LTS: 3823-2 Critical: Memory Leak and System Compromise

ubuntu
Calendar Grey November 14, 2018
Dist Ubuntu Esm H88
Attention Ubuntu 14.04 LTS users: critical kernel vulnerabilities have been discovered, jeopardizing system security. Initiate system updates immediately to protect your data
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux: Linux kernel

Details:

Jim Mattson discovered that the KVM implementation in the Linux kernel

mismanages the #BP and #OF exceptions. A local attacker in a guest virtual

machine could use this to cause a denial of service (guest OS crash).

(CVE-2016-9588)

It was discovered that the generic SCSI driver in the Linux kernel did not

properly enforce permissions on kernel memory access. A local attacker

could use this to expose sensitive information or possibly elevate

privileges. (CVE-2017-13168)

Andrey Konovalov discovered that the CDC USB Ethernet driver did not

properly validate device descriptors. A physically proximate attacker could

use this to cause a denial of service (system crash). (CVE-2017-16649)

It was discovered that an integer overflow existed in the CD-ROM driver of

the Linux kernel. A local attacker could use this to expose sensitive

information (kernel memory). (CVE-2018-16658)

...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory privilege escalation doS kernel system update ubuntu linux

Update Instructions

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

Ubuntu 14.04 LTS:
  linux-image-3.13.0-162-generic  3.13.0-162.212
  linux-image-3.13.0-162-generic-lpae  3.13.0-162.212
  linux-image-3.13.0-162-lowlatency  3.13.0-162.212
  linux-image-3.13.0-162-powerpc-e500  3.13.0-162.212
  linux-image-3.13.0-162-powerpc-e500mc  3.13.0-162.212
  linux-image-3.13.0-162-powerpc-smp  3.13.0-162.212
  linux-image-3.13.0-162-powerpc64-emb  3.13.0-162.212
  linux-image-3.13.0-162-powerpc64-smp  3.13.0-162.212
  linux-image-generic             3.13.0.162.172
  linux-image-generic-lpae        3.13.0.162.172
  linux-image-lowlatency          3.13.0.162.172
  linux-image-powerpc-e500        3.13.0.162.172
  linux-image-powerpc-e500mc      3.13.0.162.172
  linux-image-powerpc-smp         3.13.0.162.172
  linux-image-powerpc64-emb       3.13.0.162.172
  linux-image-powerpc64-smp       3.13.0.162.172

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-3822-1

CVE-2016-9588, CVE-2017-13168, CVE-2017-16649, CVE-2018-16658,

CVE-2018-9363

Severity
critical
Lowest
Low
Medium
High
Critical

November 14, 2018

Topics%20covered

Topics Covered

security advisory privilege escalation doS kernel system update ubuntu linux

Package Information

https://launchpad.net/ubuntu/+source/linux/3.13.0-162.212

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