{"id":"USN-3651-1","summary":"qemu update","details":"Ken Johnson and Jann Horn independently discovered that microprocessors utilizing\nspeculative execution of a memory read may allow unauthorized memory reads via\nsidechannel attacks. An attacker in the guest could use this to expose sensitive\nguest information, including kernel memory. This update allows QEMU to expose new\nCPU features added by microcode updates to guests on amd64 and i386.\n","modified":"2026-02-10T04:41:20Z","published":"2018-05-21T23:59:49Z","related":["UBUNTU-CVE-2018-3639"],"upstream":["CVE-2018-3639","UBUNTU-CVE-2018-3639"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3651-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-3639"}],"affected":[{"package":{"name":"qemu","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/qemu@2.0.0+dfsg-2ubuntu1.42?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.0+dfsg-2ubuntu1.42"}]}],"versions":["1.5.0+dfsg-3ubuntu5","1.5.0+dfsg-3ubuntu6","1.6.0+dfsg-2ubuntu1","1.6.0+dfsg-2ubuntu2","1.6.0+dfsg-2ubuntu3","1.6.0+dfsg-2ubuntu4","1.7.0+dfsg-2ubuntu1","1.7.0+dfsg-2ubuntu2","1.7.0+dfsg-2ubuntu3","1.7.0+dfsg-2ubuntu4","1.7.0+dfsg-2ubuntu5","1.7.0+dfsg-2ubuntu7","1.7.0+dfsg-2ubuntu8","1.7.0+dfsg-2ubuntu9","1.7.0+dfsg-3ubuntu1~ppa1","1.7.0+dfsg-3ubuntu1","1.7.0+dfsg-3ubuntu2","1.7.0+dfsg-3ubuntu3","1.7.0+dfsg-3ubuntu4","1.7.0+dfsg-3ubuntu5","1.7.0+dfsg-3ubuntu6","1.7.0+dfsg-3ubuntu7","2.0.0~rc1+dfsg-0ubuntu1","2.0.0~rc1+dfsg-0ubuntu2","2.0.0~rc1+dfsg-0ubuntu3","2.0.0~rc1+dfsg-0ubuntu3.1","2.0.0+dfsg-2ubuntu1","2.0.0+dfsg-2ubuntu1.1","2.0.0+dfsg-2ubuntu1.2","2.0.0+dfsg-2ubuntu1.3","2.0.0+dfsg-2ubuntu1.5","2.0.0+dfsg-2ubuntu1.6","2.0.0+dfsg-2ubuntu1.7","2.0.0+dfsg-2ubuntu1.8","2.0.0+dfsg-2ubuntu1.9","2.0.0+dfsg-2ubuntu1.10","2.0.0+dfsg-2ubuntu1.11","2.0.0+dfsg-2ubuntu1.13","2.0.0+dfsg-2ubuntu1.14","2.0.0+dfsg-2ubuntu1.15","2.0.0+dfsg-2ubuntu1.16","2.0.0+dfsg-2ubuntu1.17","2.0.0+dfsg-2ubuntu1.18","2.0.0+dfsg-2ubuntu1.19","2.0.0+dfsg-2ubuntu1.20","2.0.0+dfsg-2ubuntu1.21","2.0.0+dfsg-2ubuntu1.22","2.0.0+dfsg-2ubuntu1.24","2.0.0+dfsg-2ubuntu1.25","2.0.0+dfsg-2ubuntu1.26","2.0.0+dfsg-2ubuntu1.27","2.0.0+dfsg-2ubuntu1.28","2.0.0+dfsg-2ubuntu1.29","2.0.0+dfsg-2ubuntu1.30","2.0.0+dfsg-2ubuntu1.31","2.0.0+dfsg-2ubuntu1.32","2.0.0+dfsg-2ubuntu1.33","2.0.0+dfsg-2ubuntu1.34","2.0.0+dfsg-2ubuntu1.35","2.0.0+dfsg-2ubuntu1.36","2.0.0+dfsg-2ubuntu1.38","2.0.0+dfsg-2ubuntu1.39","2.0.0+dfsg-2ubuntu1.40","2.0.0+dfsg-2ubuntu1.41"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"qemu","binary_version":"2.0.0+dfsg-2ubuntu1.42"},{"binary_name":"qemu-common","binary_version":"2.0.0+dfsg-2ubuntu1.42"},{"binary_name":"qemu-guest-agent","binary_version":"2.0.0+dfsg-2ubuntu1.42"},{"binary_name":"qemu-keymaps","binary_version":"2.0.0+dfsg-2ubuntu1.42"},{"binary_name":"qemu-kvm","binary_version":"2.0.0+dfsg-2ubuntu1.42"},{"binary_name":"qemu-system","binary_version":"2.0.0+dfsg-2ubuntu1.42"},{"binary_name":"qemu-system-aarch64","binary_version":"2.0.0+dfsg-2ubuntu1.42"},{"binary_name":"qemu-system-arm","binary_version":"2.0.0+dfsg-2ubuntu1.42"},{"binary_name":"qemu-system-common","binary_version":"2.0.0+dfsg-2ubuntu1.42"},{"binary_name":"qemu-system-mips","binary_version":"2.0.0+dfsg-2ubuntu1.42"},{"binary_name":"qemu-system-misc","binary_version":"2.0.0+dfsg-2ubuntu1.42"},{"binary_name":"qemu-system-ppc","binary_version":"2.0.0+dfsg-2ubuntu1.42"},{"binary_name":"qemu-system-sparc","binary_version":"2.0.0+dfsg-2ubuntu1.42"},{"binary_name":"qemu-system-x86","binary_version":"2.0.0+dfsg-2ubuntu1.42"},{"binary_name":"qemu-user","binary_version":"2.0.0+dfsg-2ubuntu1.42"},{"binary_name":"qemu-user-static","binary_version":"2.0.0+dfsg-2ubuntu1.42"},{"binary_name":"qemu-utils","binary_version":"2.0.0+dfsg-2ubuntu1.42"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3651-1.json","cves_map":{"ecosystem":"Ubuntu:14.04:LTS","cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2018-3639"}]}}},{"package":{"name":"qemu","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/qemu@1:2.5+dfsg-5ubuntu10.29?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.5+dfsg-5ubuntu10.29"}]}],"versions":["1:2.3+dfsg-5ubuntu9","1:2.3+dfsg-5ubuntu10","1:2.4+dfsg-4ubuntu1","1:2.4+dfsg-4ubuntu2","1:2.4+dfsg-4ubuntu3","1:2.4+dfsg-5ubuntu3","1:2.5+dfsg-1ubuntu2","1:2.5+dfsg-1ubuntu3","1:2.5+dfsg-1ubuntu4","1:2.5+dfsg-1ubuntu5","1:2.5+dfsg-5ubuntu1","1:2.5+dfsg-5ubuntu2","1:2.5+dfsg-5ubuntu4","1:2.5+dfsg-5ubuntu6","1:2.5+dfsg-5ubuntu7","1:2.5+dfsg-5ubuntu10","1:2.5+dfsg-5ubuntu10.1","1:2.5+dfsg-5ubuntu10.2","1:2.5+dfsg-5ubuntu10.3","1:2.5+dfsg-5ubuntu10.4","1:2.5+dfsg-5ubuntu10.5","1:2.5+dfsg-5ubuntu10.6","1:2.5+dfsg-5ubuntu10.7","1:2.5+dfsg-5ubuntu10.8","1:2.5+dfsg-5ubuntu10.9","1:2.5+dfsg-5ubuntu10.10","1:2.5+dfsg-5ubuntu10.11","1:2.5+dfsg-5ubuntu10.13","1:2.5+dfsg-5ubuntu10.14","1:2.5+dfsg-5ubuntu10.15","1:2.5+dfsg-5ubuntu10.16","1:2.5+dfsg-5ubuntu10.20","1:2.5+dfsg-5ubuntu10.21","1:2.5+dfsg-5ubuntu10.22","1:2.5+dfsg-5ubuntu10.24","1:2.5+dfsg-5ubuntu10.25","1:2.5+dfsg-5ubuntu10.26","1:2.5+dfsg-5ubuntu10.28"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"qemu","binary_version":"1:2.5+dfsg-5ubuntu10.29"},{"binary_name":"qemu-block-extra","binary_version":"1:2.5+dfsg-5ubuntu10.29"},{"binary_name":"qemu-guest-agent","binary_version":"1:2.5+dfsg-5ubuntu10.29"},{"binary_name":"qemu-kvm","binary_version":"1:2.5+dfsg-5ubuntu10.29"},{"binary_name":"qemu-system","binary_version":"1:2.5+dfsg-5ubuntu10.29"},{"binary_name":"qemu-system-aarch64","binary_version":"1:2.5+dfsg-5ubuntu10.29"},{"binary_name":"qemu-system-arm","binary_version":"1:2.5+dfsg-5ubuntu10.29"},{"binary_name":"qemu-system-common","binary_version":"1:2.5+dfsg-5ubuntu10.29"},{"binary_name":"qemu-system-mips","binary_version":"1:2.5+dfsg-5ubuntu10.29"},{"binary_name":"qemu-system-misc","binary_version":"1:2.5+dfsg-5ubuntu10.29"},{"binary_name":"qemu-system-ppc","binary_version":"1:2.5+dfsg-5ubuntu10.29"},{"binary_name":"qemu-system-s390x","binary_version":"1:2.5+dfsg-5ubuntu10.29"},{"binary_name":"qemu-system-sparc","binary_version":"1:2.5+dfsg-5ubuntu10.29"},{"binary_name":"qemu-system-x86","binary_version":"1:2.5+dfsg-5ubuntu10.29"},{"binary_name":"qemu-user","binary_version":"1:2.5+dfsg-5ubuntu10.29"},{"binary_name":"qemu-user-binfmt","binary_version":"1:2.5+dfsg-5ubuntu10.29"},{"binary_name":"qemu-user-static","binary_version":"1:2.5+dfsg-5ubuntu10.29"},{"binary_name":"qemu-utils","binary_version":"1:2.5+dfsg-5ubuntu10.29"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3651-1.json","cves_map":{"ecosystem":"Ubuntu:16.04:LTS","cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2018-3639"}]}}},{"package":{"name":"qemu","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/qemu@1:2.11+dfsg-1ubuntu7.2?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.11+dfsg-1ubuntu7.2"}]}],"versions":["1:2.10+dfsg-0ubuntu3","1:2.10+dfsg-0ubuntu4","1:2.10+dfsg-0ubuntu5","1:2.11+dfsg-1ubuntu1","1:2.11+dfsg-1ubuntu2","1:2.11+dfsg-1ubuntu4","1:2.11+dfsg-1ubuntu5","1:2.11+dfsg-1ubuntu6","1:2.11+dfsg-1ubuntu7","1:2.11+dfsg-1ubuntu7.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"qemu","binary_version":"1:2.11+dfsg-1ubuntu7.2"},{"binary_name":"qemu-block-extra","binary_version":"1:2.11+dfsg-1ubuntu7.2"},{"binary_name":"qemu-guest-agent","binary_version":"1:2.11+dfsg-1ubuntu7.2"},{"binary_name":"qemu-kvm","binary_version":"1:2.11+dfsg-1ubuntu7.2"},{"binary_name":"qemu-system","binary_version":"1:2.11+dfsg-1ubuntu7.2"},{"binary_name":"qemu-system-arm","binary_version":"1:2.11+dfsg-1ubuntu7.2"},{"binary_name":"qemu-system-common","binary_version":"1:2.11+dfsg-1ubuntu7.2"},{"binary_name":"qemu-system-mips","binary_version":"1:2.11+dfsg-1ubuntu7.2"},{"binary_name":"qemu-system-misc","binary_version":"1:2.11+dfsg-1ubuntu7.2"},{"binary_name":"qemu-system-ppc","binary_version":"1:2.11+dfsg-1ubuntu7.2"},{"binary_name":"qemu-system-s390x","binary_version":"1:2.11+dfsg-1ubuntu7.2"},{"binary_name":"qemu-system-sparc","binary_version":"1:2.11+dfsg-1ubuntu7.2"},{"binary_name":"qemu-system-x86","binary_version":"1:2.11+dfsg-1ubuntu7.2"},{"binary_name":"qemu-user","binary_version":"1:2.11+dfsg-1ubuntu7.2"},{"binary_name":"qemu-user-binfmt","binary_version":"1:2.11+dfsg-1ubuntu7.2"},{"binary_name":"qemu-user-static","binary_version":"1:2.11+dfsg-1ubuntu7.2"},{"binary_name":"qemu-utils","binary_version":"1:2.11+dfsg-1ubuntu7.2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3651-1.json","cves_map":{"ecosystem":"Ubuntu:18.04:LTS","cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2018-3639"}]}}}],"schema_version":"1.7.3"}