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ubuntuUbuntuUSN-3690-2
HistoryJul 05, 2018 - 12:00 a.m.

AMD Microcode regression

2018-07-0500:00:00
ubuntu.com
45

1.9 Low

CVSS2

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:L/AC:M/Au:N/C:P/I:N/A:N

5.6 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N

6.3 Medium

AI Score

Confidence

High

0.975 High

EPSS

Percentile

100.0%

JSON

Releases

  • Ubuntu 14.04 ESM

Packages

  • 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.

OSVersionArchitecturePackageVersionFilename
Ubuntu14.04noarchamd64-microcode< 3.20180524.1~ubuntu0.14.04.2+really20130710.1UNKNOWN

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mageia 2
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1.9 Low

CVSS2

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:L/AC:M/Au:N/C:P/I:N/A:N

5.6 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N

6.3 Medium

AI Score

Confidence

High

0.975 High

EPSS

Percentile

100.0%

JSON
Related for USN-3690-2
oraclelinux4openvas46nessus77redhat25suse12cloudfoundry2centos5ubuntu6threatpost2slackware1virtuozzo1paloalto1amazon3debian5mageia2nvd1cvelist1osv1archlinux1vmware1thn1cve1ibm1