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ubuntucveUbuntu.comUB:CVE-2020-0543
HistoryJun 09, 2020 - 12:00 a.m.

CVE-2020-0543

2020-06-0900:00:00
ubuntu.com
ubuntu.com
18

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

2.1 Low

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

0.001 Low

EPSS

Percentile

18.0%

JSON

Incomplete cleanup from specific special register read operations in some
Intel® Processors may allow an authenticated user to potentially enable
information disclosure via local access.

Notes

Author Note
tyhicks This issue only affects Intel client and Xeon E3 processors
sbeattie also known as “CrossTalk”
sbeattie Affected processor families: ============= ============ ======== common name Family_Model Stepping ============= ============ ======== IvyBridge 06_3AH All Haswell 06_3CH All Haswell_L 06_45H All Haswell_G 06_46H All Broadwell_G 06_47H All Broadwell 06_3DH All Skylake_L 06_4EH All Skylake 06_5EH All Kabylake_L 06_8EH <= 0xC Kabylake 06_9EH <= 0xD ============= ============ ========
OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchintel-microcode< 3.20200609.0ubuntu0.18.04.0UNKNOWN
ubuntu19.10noarchintel-microcode< 3.20200609.0ubuntu0.19.10.0UNKNOWN
ubuntu20.04noarchintel-microcode< 3.20200609.0ubuntu0.20.04.0UNKNOWN
ubuntu20.10noarchintel-microcode< 3.20200609.0ubuntu0.20.04.0UNKNOWN
ubuntu14.04noarchintel-microcode< 3.20200609.0ubuntu0.14.04.0) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu16.04noarchintel-microcode< 3.20200609.0ubuntu0.16.04.0UNKNOWN
ubuntu18.04noarchxen< anyUNKNOWN
ubuntu20.04noarchxen< 4.11.3+24-g14b62ab3e5-1ubuntu2.3UNKNOWN
ubuntu16.04noarchxen< anyUNKNOWN

References

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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

2.1 Low

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

0.001 Low

EPSS

Percentile

18.0%

JSON
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