Windows 10: Intel Microarchitectural Data Sampling Advisory

Brink · May 15, 2019

Intel ID: INTEL-SA-00233 Advisory Category: Hardware Impact of vulnerability: Information Disclosure Severity rating: MEDIUM Original release: 05/14/2019 Last revised: 05/14/2019
Summary:

A potential security vulnerability in CPUs may allow information disclosure. Intel is releasing Microcode Updates (MCU) updates to mitigate this potential vulnerability.

Vulnerability Details:

CVEID: CVE-2018-12126
Microarchitectural Store Buffer Data Sampling (MSBDS): Store buffers on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access.
CVSS Base Score: 6.5 Medium
CVSS Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

CVEID: CVE-2018-12127
Microarchitectural Load Port Data Sampling (MLPDS): Load ports on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access.
CVSS Base Score: 6.5 Medium
CVSS Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

CVEID: CVE-2018-12130
Microarchitectural Fill Buffer Data Sampling (MFBDS): Fill buffers on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access.
CVSS Base Score: 6.5 Medium
CVSS Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

CVEID: CVE-2019-11091
Microarchitectural Data Sampling Uncacheable Memory (MDSUM): Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access.
CVSS Base Score: 3.8 Low
CVSS Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

Affected Products:

A list of impacted products can be found here.

Recommendation:

Intel has worked with operating system vendors, equipment manufacturers, and other ecosystem partners to develop platform firmware and software updates that can help protect systems from these methods. This includes the release of updated Intel microprocessor microcode to our customers and partners.

Status of available microcode can be found here.
Public Github: https://github.com/intel/Intel-Linux...ode-Data-Files

End users and systems administrators should check with their system manufacturers and system software vendors and apply any available updates as soon as practical.

Acknowledgements:

Microarchitectural Store Buffer Data Sampling (MSBDS) - CVE-2018-12126: This vulnerability was found internally by Intel employees. Intel would like to thank Ke Sun, Henrique Kawakami, Kekai Hu and Rodrigo Branco. It was independently reported by Lei Shi - Qihoo - 360 CERT and by Marina Minkin1, Daniel Moghimi2, Moritz Lipp3, Michael Schwarz3, Jo Van Bulck4, Daniel Genkin1, Daniel Gruss3, Berk Sunar2, Frank Piessens4, Yuval Yarom5 (1University of Michigan, 2Worcester Polytechnic Institute, 3Graz University of Technology, 4imec-DistriNet, KU Leuven, 5University of Adelaide).

Microarchitectural Load Port Data Sampling (MLPDS) - CVE-2018-12127: This vulnerability was found internally by Intel employees and Microsoft. Intel would like to thank Brandon Falk – Microsoft Windows Platform Security Team, Ke Sun, Henrique Kawakami, Kekai Hu, and Rodrigo Branco - Intel. It was independently reported by Matt Miller – Microsoft, and by Stephan van Schaik, Alyssa Milburn, Sebastian Österlund, Pietro Frigo, Kaveh Razavi, Herbert Bos, and Cristiano Giuffrida - VUSec group at VU Amsterdam.

Microarchitectural Fill Buffer Data Sampling (MFBDS) - CVE-2018-12130: This vulnerability was found internally by Intel employees. Intel would like to thank Ke Sun, Henrique Kawakami, Kekai Hu and Rodrigo Branco. It was independently reported by Giorgi Maisuradze – Microsoft Research, and by Dan Horea Lutas, and Andrei Lutas - Bitdefender, and by Volodymyr Pikhur, and by Stephan van Schaik, Alyssa Milburn, Sebastian Österlund, Pietro Frigo, Kaveh Razavi, Herbert Bos, and Cristiano Giuffrida - VUSec group at VU Amsterdam, and by Moritz Lipp, Michael Schwarz, and Daniel Gruss - Graz University of Technology.

Microarchitectural Data Sampling Uncacheable Memory (MDSUM) – CVE-2019-11091: This vulnerability was found internally by Intel employees. Intel would like to thank Ke Sun, Henrique Kawakami, Kekai Hu and Rodrigo Branco. It was independently found by Volodrmyr Pikhur, and by Moritz Lipp, Michael Schwarz, Daniel Gruss - Graz University of Technology, and by Stephan van Schaik, Alyssa Milburn, Sebastian Österlund, Pietro Frigo, Kaveh Razavi, Herbert Bos, and Cristiano Giuffrida - VUSec group at VU Amsterdam.

Intel, and nearly the entire technology industry, follows a disclosure practice called Coordinated Disclosure, under which a cybersecurity vulnerability is generally publicly disclosed only after mitigations are available.

Revision History

Revision Date Description 1.0 05/14/2019 Initial Release
Click to expand...

Source: https://www.intel.com/content/www/us...-sa-00233.html

See also:

Windows client guidance for IT Pros to protect against speculative

Summary of Intel microcode updates

KB4494452 Intel microcode updates for Windows 10 v1709 - May 14

KB4494453 Intel microcode updates for Windows 10 v1703 - May 14

KB4494175 Intel Microcode Updates for Windows 10 v1607 - May 14

KB4494454 Intel Microcode Updates for Windows 10 v1507 - May 14

:)

haswrong · May 15, 2019

Intel Skylake Microarchitecture Detailed

oh damn, i read: "Intel Skylake Microarchitecture Dead" *Slap :slap:

i might be a disgraphic..

Brink · May 15, 2019

Intel QuickAssist Technology for Linux Advisory

[table][tr]Intel ID: INTEL-SA-00209 [/tr] [tr][td]Advisory Category:[/td] [td]Software[/td] [/tr] [tr][td]Impact of vulnerability:[/td] [td]Denial of Service[/td] [/tr] [tr][td]Severity rating:[/td] [td]LOW[/td] [/tr] [tr][td]Original release:[/td] [td]12/11/2018[/td] [/tr] [tr][td]Last revised:[/td] [td]12/11/2018[/td] [/tr] [/table]

Summary:

A potential security vulnerability in Intel® QuickAssist Technology for Linux may allow denial of service. Intel is releasing documentation and software updates to mitigate these potential vulnerabilities.

Vulnerability Details:

CVEID: CVE-2018-12206

Description: Improper configuration of hardware access in Intel(R) QuickAssist Technology for Linux (all versions) may allow an authenticated user to potentially enable a denial of service via local access.

CVSS Base Score: 3.2 Low

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

CVEID: CVE-2018-18096

Description: Improper memory handling in Intel(R) QuickAssist Technology for Linux (all versions) may allow an authenticated user to potentially enable a denial of service via local access.

CVSS Base Score: 3.2 Low

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

Affected Products:

Intel(R) QuickAssist Technology for Linux.

Recommendations:

Intel recommends that users follow the steps below to address these issues.

For CVE-2018-12206:

Evaluate section 3.1.4 of the R4.3.0 Intel® QuickAssist for Linux Release Notes for potential changes to VM deployment environment.

Release Notes: https://01.org/sites/default/files/d...atrelnotes.pdf

For CVE-2018-18096:

Functionality removed in R4.3.

Will be reinstated with update to version R4.4 or later.

Acknowledgements:

These issues were found internally by Intel employees. Intel would like to thank Ryan Hall (CVE-2018-18096) from the DCG Red Team.

Intel, and nearly the entire technology industry, follows a disclosure practice called Coordinated Disclosure, under which a cybersecurity vulnerability is generally publicly disclosed only after mitigations are deployed.

Revision History

[table][tr]Revision Date Description [/tr] [tr][td]1.0[/td] [td]12/11/2018[/td] [td]Initial Release[/td] [/tr] [/table]
Click to expand...

Source: INTEL-SA-00211

beyond_amusia · May 15, 2019

When will Intel release an entirely new CPU micro-architecture?

Intel's next step will be "Sandy Bridge"

http://en.wikipedia.org/wiki/Intel_Sandy_Bridge_(microarchitecture)

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