what you don't know can hurt you

Ubuntu Security Notice USN-3690-2

Ubuntu Security Notice USN-3690-2
Posted Jul 5, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3690-2 - USN-3690-1 provided updated microcode for AMD processors to address CVE-2017-5715. Unfortunately, the update caused some systems to fail to boot. This update reverts the update for Ubuntu 14.04 LTS. Various other issues were also addressed.

tags | advisory
systems | linux, ubuntu
advisories | CVE-2017-5715
MD5 | 7bce549e83e38662cea793964ee2cd94

Ubuntu Security Notice USN-3690-2

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-3690-2
July 05, 2018

amd64-microcode regression
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 14.04 LTS

Summary:

The system could be made to expose sensitive information.

Software Description:
- amd64-microcode: Processor microcode firmware for AMD CPUs

Details:

USN-3690-1 provided updated microcode for AMD processors to address
CVE-2017-5715 (aka Spectre). Unfortunately, the update caused some
systems to fail to boot. This update reverts the update for Ubuntu
14.04 LTS.

We apologize for the inconvenience.

Original advisory details:

Jann Horn discovered that microprocessors utilizing speculative execution
and branch prediction may allow unauthorized memory reads via sidechannel
attacks. This flaw is known as Spectre. A local attacker could use this to
expose sensitive information, including kernel memory.

This update provides the microcode updates for AMD 17H family
processors required for the corresponding Linux kernel updates.

Update instructions:

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

Ubuntu 14.04 LTS:
amd64-microcode 3.20180524.1~ubuntu0.14.04.2+really20130710.1

After a standard system update you need to reboot your computer to make
all the necessary changes.

References:
https://usn.ubuntu.com/usn/usn-3690-2
https://usn.ubuntu.com/usn/usn-3690-1
https://launchpad.net/bugs/1779092

Package Information:
https://launchpad.net/ubuntu/+source/amd64-microcode/3.20180524.1~ubuntu0.14.04.2+really20130710.1

Comments

RSS Feed Subscribe to this comment feed

No comments yet, be the first!

Login or Register to post a comment

File Archive:

November 2019

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Nov 1st
    28 Files
  • 2
    Nov 2nd
    1 Files
  • 3
    Nov 3rd
    1 Files
  • 4
    Nov 4th
    12 Files
  • 5
    Nov 5th
    19 Files
  • 6
    Nov 6th
    65 Files
  • 7
    Nov 7th
    22 Files
  • 8
    Nov 8th
    18 Files
  • 9
    Nov 9th
    1 Files
  • 10
    Nov 10th
    1 Files
  • 11
    Nov 11th
    11 Files
  • 12
    Nov 12th
    65 Files
  • 13
    Nov 13th
    0 Files
  • 14
    Nov 14th
    0 Files
  • 15
    Nov 15th
    0 Files
  • 16
    Nov 16th
    0 Files
  • 17
    Nov 17th
    0 Files
  • 18
    Nov 18th
    0 Files
  • 19
    Nov 19th
    0 Files
  • 20
    Nov 20th
    0 Files
  • 21
    Nov 21st
    0 Files
  • 22
    Nov 22nd
    0 Files
  • 23
    Nov 23rd
    0 Files
  • 24
    Nov 24th
    0 Files
  • 25
    Nov 25th
    0 Files
  • 26
    Nov 26th
    0 Files
  • 27
    Nov 27th
    0 Files
  • 28
    Nov 28th
    0 Files
  • 29
    Nov 29th
    0 Files
  • 30
    Nov 30th
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2019 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close