exploit the possibilities

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:

May 2019

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    May 1st
    16 Files
  • 2
    May 2nd
    8 Files
  • 3
    May 3rd
    8 Files
  • 4
    May 4th
    2 Files
  • 5
    May 5th
    1 Files
  • 6
    May 6th
    15 Files
  • 7
    May 7th
    22 Files
  • 8
    May 8th
    16 Files
  • 9
    May 9th
    17 Files
  • 10
    May 10th
    16 Files
  • 11
    May 11th
    3 Files
  • 12
    May 12th
    4 Files
  • 13
    May 13th
    25 Files
  • 14
    May 14th
    24 Files
  • 15
    May 15th
    78 Files
  • 16
    May 16th
    16 Files
  • 17
    May 17th
    16 Files
  • 18
    May 18th
    2 Files
  • 19
    May 19th
    1 Files
  • 20
    May 20th
    11 Files
  • 21
    May 21st
    21 Files
  • 22
    May 22nd
    20 Files
  • 23
    May 23rd
    36 Files
  • 24
    May 24th
    0 Files
  • 25
    May 25th
    0 Files
  • 26
    May 26th
    0 Files
  • 27
    May 27th
    0 Files
  • 28
    May 28th
    0 Files
  • 29
    May 29th
    0 Files
  • 30
    May 30th
    0 Files
  • 31
    May 31st
    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