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HistoryJun 11, 2020 - 3:21 p.m.

[SECURITY] [DSA 4701-1] intel-microcode security update

2020-06-1115:21:45
lists.debian.org
52

2.1 Low

CVSS2

Attack Vector

LOCAL

Attack 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

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

7.5 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

19.4%


Debian Security Advisory DSA-4701-1 [email protected]
https://www.debian.org/security/ Salvatore Bonaccorso
June 11, 2020 https://www.debian.org/security/faq


Package : intel-microcode
CVE ID : CVE-2020-0543 CVE-2020-0548 CVE-2020-0549

This update ships updated CPU microcode for some types of Intel CPUs and
provides mitigations for the Special Register Buffer Data Sampling
(CVE-2020-0543), Vector Register Sampling (CVE-2020-0548) and L1D
Eviction Sampling (CVE-2020-0549) hardware vulnerabilities.

The microcode update for HEDT and Xeon CPUs with signature 0x50654 which
was reverted in DSA 4565-2 is now included again with a fixed release.

The upstream update for Skylake-U/Y (signature 0x406e3) had to be
excluded from this update due to reported hangs on boot.

For details refer to
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00320.html
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00329.html

For the oldstable distribution (stretch), these problems have been fixed
in version 3.20200609.2~deb9u1.

For the stable distribution (buster), these problems have been fixed in
version 3.20200609.2~deb10u1.

We recommend that you upgrade your intel-microcode packages.

For the detailed security status of intel-microcode please refer to its
security tracker page at:
https://security-tracker.debian.org/tracker/intel-microcode

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: [email protected]

2.1 Low

CVSS2

Attack Vector

LOCAL

Attack 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

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

7.5 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

19.4%