{"id":"USN-3977-2","summary":"intel-microcode update","details":"USN-3977-1 provided mitigations for Microarchitectural Data Sampling\n(MDS) vulnerabilities in Intel Microcode for a large number of Intel\nprocessor families. This update provides the corresponding updated\nmicrocode mitigations for Intel Cherry Trail and Bay Trail processor\nfamilies.\n\nOriginal advisory details:\n\n Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Giorgi Maisuradze, Dan\n Horea Lutas, Andrei Lutas, Volodymyr Pikhur, Stephan van Schaik, Alyssa\n Milburn, Sebastian Österlund, Pietro Frigo, Kaveh Razavi, Herbert Bos,\n Cristiano Giuffrida, Moritz Lipp, Michael Schwarz, and Daniel Gruss\n discovered that memory previously stored in microarchitectural fill buffers\n of an Intel CPU core may be exposed to a malicious process that is\n executing on the same CPU core. A local attacker could use this to expose\n sensitive information. (CVE-2018-12130)\n\n Brandon Falk, Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Stephan\n van Schaik, Alyssa Milburn, Sebastian Österlund, Pietro Frigo, Kaveh\n Razavi, Herbert Bos, and Cristiano Giuffrida discovered that memory\n previously stored in microarchitectural load ports of an Intel CPU core may\n be exposed to a malicious process that is executing on the same CPU core. A\n local attacker could use this to expose sensitive information.\n (CVE-2018-12127)\n\n Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Marina Minkin, Daniel\n Moghimi, Moritz Lipp, Michael Schwarz, Jo Van Bulck, Daniel Genkin, Daniel\n Gruss, Berk Sunar, Frank Piessens, and Yuval Yarom discovered that memory\n previously stored in microarchitectural store buffers of an Intel CPU core\n may be exposed to a malicious process that is executing on the same CPU\n core. A local attacker could use this to expose sensitive information.\n (CVE-2018-12126)\n\n Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Volodrmyr Pikhur,\n Moritz Lipp, Michael Schwarz, Daniel Gruss, Stephan van Schaik, Alyssa\n Milburn, Sebastian Österlund, Pietro Frigo, Kaveh Razavi, Herbert Bos, and\n Cristiano Giuffrida discovered that uncacheable memory previously stored in\n microarchitectural buffers of an Intel CPU core may be exposed to a\n malicious process that is executing on the same CPU core. A local attacker\n could use this to expose sensitive information. (CVE-2019-11091)\n","modified":"2026-02-10T04:41:32Z","published":"2019-05-22T21:09:40Z","related":["UBUNTU-CVE-2018-12126","UBUNTU-CVE-2018-12127","UBUNTU-CVE-2018-12130","UBUNTU-CVE-2019-11091"],"upstream":["CVE-2018-12126","CVE-2018-12127","CVE-2018-12130","CVE-2019-11091","UBUNTU-CVE-2018-12126","UBUNTU-CVE-2018-12127","UBUNTU-CVE-2018-12130","UBUNTU-CVE-2019-11091"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3977-2"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-12126"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-12127"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-12130"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-11091"}],"affected":[{"package":{"name":"intel-microcode","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/intel-microcode@3.20190514.0ubuntu0.14.04.2?arch=source&distro=trusty/esm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.20190514.0ubuntu0.14.04.2"}]}],"versions":["1.20130906.1ubuntu2","1.20130906.1ubuntu3","2.20140122.1","2.20140430.1ubuntu1","2.20140624-t-1ubuntu2","3.20180108.0~ubuntu14.04.2","3.20180108.0+really20170707ubuntu14.04.1","3.20180312.0~ubuntu14.04.1","3.20180425.1~ubuntu0.14.04.1","3.20180425.1~ubuntu0.14.04.2","3.20180807a.0ubuntu0.14.04.1","3.20190514.0ubuntu0.14.04.1"],"ecosystem_specific":{"binaries":[{"binary_name":"intel-microcode","binary_version":"3.20190514.0ubuntu0.14.04.2"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"cves_map":{"cves":[],"ecosystem":"Ubuntu:Pro:14.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3977-2.json"}},{"package":{"name":"intel-microcode","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/intel-microcode@3.20190514.0ubuntu0.16.04.2?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.20190514.0ubuntu0.16.04.2"}]}],"versions":["3.20150121.1","3.20151106.1","3.20170707.1~ubuntu16.04.0","3.20180108.0~ubuntu16.04.2","3.20180108.0+really20170707ubuntu16.04.1","3.20180312.0~ubuntu16.04.1","3.20180425.1~ubuntu0.16.04.1","3.20180425.1~ubuntu0.16.04.2","3.20180807a.0ubuntu0.16.04.1","3.20190514.0ubuntu0.16.04.1"],"ecosystem_specific":{"binaries":[{"binary_name":"intel-microcode","binary_version":"3.20190514.0ubuntu0.16.04.2"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"cves":[],"ecosystem":"Ubuntu:16.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3977-2.json"}},{"package":{"name":"intel-microcode","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/intel-microcode@3.20190514.0ubuntu0.18.04.3?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.20190514.0ubuntu0.18.04.3"}]}],"versions":["3.20170707.1","3.20171117.1","3.20180108.1","3.20180108.1+really20171117.1","3.20180312.0~ubuntu18.04.1","3.20180425.1~ubuntu0.18.04.1","3.20180425.1~ubuntu0.18.04.2","3.20180807a.0ubuntu0.18.04.1","3.20190514.0ubuntu0.18.04.2"],"ecosystem_specific":{"binaries":[{"binary_name":"intel-microcode","binary_version":"3.20190514.0ubuntu0.18.04.3"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"cves":[],"ecosystem":"Ubuntu:18.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3977-2.json"}}],"schema_version":"1.7.3"}