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ubuntuUbuntuUSN-6244-1
HistoryJul 25, 2023 - 12:00 a.m.

AMD Microcode vulnerability

2023-07-2500:00:00
ubuntu.com
61

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

7.3 High

AI Score

Confidence

High

1.7 Low

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

0.001 Low

EPSS

Percentile

22.7%

JSON

Releases

  • Ubuntu 23.04
  • Ubuntu 22.04 LTS
  • Ubuntu 20.04 LTS
  • Ubuntu 18.04 ESM
  • Ubuntu 16.04 ESM

Packages

  • amd64-microcode - Processor microcode firmware for AMD CPUs

Details

Tavis Ormandy discovered that some AMD processors did not properly handle
speculative execution of certain vector register instructions. A local attacker
could use this to expose sensitive information.

OSVersionArchitecturePackageVersionFilename
Ubuntu23.04noarchamd64-microcode< 3.20220411.1ubuntu3.1UNKNOWN
Ubuntu22.04noarchamd64-microcode< 3.20191218.1ubuntu2.1UNKNOWN
Ubuntu20.04noarchamd64-microcode< 3.20191218.1ubuntu1.1UNKNOWN
Ubuntu18.04noarchamd64-microcode< 3.20191021.1+really3.20181128.1~ubuntu0.18.04.1+esm1UNKNOWN
Ubuntu18.04noarchamd64-microcode< 3.20191021.1+really3.20181128.1~ubuntu0.18.04.1UNKNOWN
Ubuntu16.04noarchamd64-microcode< 3.20191021.1+really3.20180524.1~ubuntu0.16.04.2+esm1UNKNOWN
Ubuntu16.04noarchamd64-microcode< 3.20191021.1+really3.20180524.1~ubuntu0.16.04.2UNKNOWN

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Updated kernel packages fix security vulnerability
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5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

7.3 High

AI Score

Confidence

High

1.7 Low

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

0.001 Low

EPSS

Percentile

22.7%

JSON
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