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Ubuntu 12.04 ESM USN-3674-2 Moderate: Kernel DoS Threats and Fixes

ubuntu
Calendar Grey June 11, 2018
Scroller Ubuntu Esm H88
Crucial announcement for Ubuntu 12.04 ESM regarding various kernel vulnerabilities. Verify system stability post restart.
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-3674-1 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 netfilter subsystem of the Linux kernel did not

properly validate ebtables offsets. A local attacker could use this to

cause a denial of service (system crash) or possibly execute arbitrary

code. (CVE-2018-1068)

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

(Reliable Datagram Sockets) protocol implementation in the Linux kernel. A

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

(CVE-2018-7492)

Eyal Itkin discovered that the USB displaylink video adapter driver in the

Linux kernel did not properly validate mmap offsets sent fro...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service moderate severity kernel system update ubuntu linux-lts-trusty

Update Instructions

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

Ubuntu 12.04 ESM:
  linux-image-3.13.0-151-generic  3.13.0-151.201~precise1
  linux-image-3.13.0-151-generic-lpae  3.13.0-151.201~precise1
  linux-image-generic-lpae-lts-trusty  3.13.0.151.142
  linux-image-generic-lts-trusty  3.13.0.151.142

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-3674-2

https://ubuntu.com/security/notices/USN-3674-1

CVE-2017-0627, CVE-2018-1068, CVE-2018-7492, CVE-2018-8781

Severity
important
Lowest
Low
Medium
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Critical

June 11, 2018

Topics%20covered

Topics Covered

security advisory denial of service moderate severity kernel system update ubuntu linux-lts-trusty

Package Information

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