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[USN-3977-3] Intel Microcode update

Severity High
Affected Packages 5
CVEs 4
Info Packages Vulnerabilities

The system could be made to expose sensitive information.

USN-3977-1 and USN-3977-2 provided mitigations for Microarchitectural
Data Sampling (MDS) vulnerabilities in Intel Microcode for a
large number of Intel processor families. This update provides the
corresponding updated microcode mitigations for the Intel Sandy Bridge
processor family

Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Giorgi Maisuradze, Dan
Horea Lutas, Andrei Lutas, Volodymyr Pikhur, Stephan van Schaik, Alyssa
Milburn, Sebastian Österlund, Pietro Frigo, Kaveh Razavi, Herbert Bos,
Cristiano Giuffrida, Moritz Lipp, Michael Schwarz, and Daniel Gruss
discovered that memory previously stored in microarchitectural fill buffers
of an Intel CPU core may be exposed to a malicious process that is
executing on the same CPU core. A local attacker could use this to expose
sensitive information. (CVE-2018-12130)

Brandon Falk, Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Stephan
van Schaik, Alyssa Milburn, Sebastian Österlund, Pietro Frigo, Kaveh
Razavi, Herbert Bos, and Cristiano Giuffrida discovered that memory
previously stored in microarchitectural load ports of an Intel CPU core may
be exposed to a malicious process that is executing on the same CPU core. A
local attacker could use this to expose sensitive information.
(CVE-2018-12127)

Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Marina Minkin, Daniel
Moghimi, Moritz Lipp, Michael Schwarz, Jo Van Bulck, Daniel Genkin, Daniel
Gruss, Berk Sunar, Frank Piessens, and Yuval Yarom discovered that memory
previously stored in microarchitectural store buffers of an Intel CPU core
may be exposed to a malicious process that is executing on the same CPU
core. A local attacker could use this to expose sensitive information.
(CVE-2018-12126)

Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Volodrmyr Pikhur,
Moritz Lipp, Michael Schwarz, Daniel Gruss, Stephan van Schaik, Alyssa
Milburn, Sebastian Österlund, Pietro Frigo, Kaveh Razavi, Herbert Bos, and
Cristiano Giuffrida discovered that uncacheable memory previously stored in
microarchitectural buffers of an Intel CPU core may be exposed to a
malicious process that is executing on the same CPU core. A local attacker
could use this to expose sensitive information. (CVE-2019-11091)

Package Affected Version
pkg:deb/ubuntu/intel-microcode?distro=xenial < 3.20190618.0ubuntu0.16.04.1
pkg:deb/ubuntu/intel-microcode?distro=trusty < 3.20190618.0ubuntu0.14.04.1
pkg:deb/ubuntu/intel-microcode?distro=disco < 3.20190618.0ubuntu0.19.04.1
pkg:deb/ubuntu/intel-microcode?distro=cosmic < 3.20190618.0ubuntu0.18.10.1
pkg:deb/ubuntu/intel-microcode?distro=bionic < 3.20190618.0ubuntu0.18.04.1
ID
USN-3977-3
Severity
high
URL
https://ubuntu.com/security/notices/USN-3977-3
Published
2019-06-20T19:47:47
(5 years ago)
Modified
2019-06-20T19:47:47
(5 years ago)
Other Advisories
Type Package URL Namespace Name / Product Version Distribution / Platform Arch Patch / Fix
Affected pkg:deb/ubuntu/intel-microcode?distro=xenial ubuntu intel-microcode < 3.20190618.0ubuntu0.16.04.1 xenial
Affected pkg:deb/ubuntu/intel-microcode?distro=trusty ubuntu intel-microcode < 3.20190618.0ubuntu0.14.04.1 trusty
Affected pkg:deb/ubuntu/intel-microcode?distro=disco ubuntu intel-microcode < 3.20190618.0ubuntu0.19.04.1 disco
Affected pkg:deb/ubuntu/intel-microcode?distro=cosmic ubuntu intel-microcode < 3.20190618.0ubuntu0.18.10.1 cosmic
Affected pkg:deb/ubuntu/intel-microcode?distro=bionic ubuntu intel-microcode < 3.20190618.0ubuntu0.18.04.1 bionic
# CVE Description CVSS EPSS EPSS Trend (30 days) Affected Products Weaknesses Security Advisories Exploits PoC Pubblication Date Modification Date
# CVE Description CVSS EPSS EPSS Trend (30 days) Affected Products Weaknesses Security Advisories PoC Pubblication Date Modification Date