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ubuntucveUbuntu.comUB:CVE-2018-3640
HistoryMay 21, 2018 - 12:00 a.m.

CVE-2018-3640

2018-05-2100:00:00
ubuntu.com
ubuntu.com
21

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

4.7 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

NONE

Availability Impact

NONE

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

0.003 Low

EPSS

Percentile

65.2%

JSON

Systems with microprocessors utilizing speculative execution and that
perform speculative reads of system registers may allow unauthorized
disclosure of system parameters to an attacker with local user access via a
side-channel analysis, aka Rogue System Register Read (RSRE), Variant 3a.

Notes

Author Note
tyhicks V3a - Rogue Register Load Will be entirely addressed by microcode updates. No kernel changes are needed.
OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchintel-microcode< 3.20180807a.0ubuntu0.18.04.1UNKNOWN
ubuntu14.04noarchintel-microcode< 3.20180807a.0ubuntu0.14.04.1UNKNOWN
ubuntu16.04noarchintel-microcode< 3.20180807a.0ubuntu0.16.04.1UNKNOWN

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

4.7 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

NONE

Availability Impact

NONE

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

0.003 Low

EPSS

Percentile

65.2%

JSON
Related for UB:CVE-2018-3640
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