{"id":"USN-4650-1","summary":"qemu vulnerabilities","details":"Alexander Bulekov discovered that QEMU incorrectly handled SDHCI device\nemulation. An attacker inside the guest could use this issue to cause QEMU\nto crash, resulting in a denial of service, or possibly execute arbitrary\ncode on the host. In the default installation, when QEMU is used with\nlibvirt, attackers would be isolated by the libvirt AppArmor profile. \n(CVE-2020-17380)\n\nSergej Schumilo, Cornelius Aschermann, and Simon Wrner discovered that QEMU\nincorrectly handled USB device emulation. An attacker inside the guest\ncould use this issue to cause QEMU to crash, resulting in a denial of\nservice. (CVE-2020-25084)\n\nSergej Schumilo, Cornelius Aschermann, and Simon Wrner discovered that QEMU\nincorrectly handled SDHCI device emulation. An attacker inside the guest\ncould use this issue to cause QEMU to crash, resulting in a denial of\nservice. (CVE-2020-25085)\n\nGaoning Pan, Yongkang Jia, and Yi Ren discovered that QEMU incorrectly\nhandled USB device emulation. An attacker inside the guest could use this\nissue to cause QEMU to crash, resulting in a denial of service.\n(CVE-2020-25624)\n\nIt was discovered that QEMU incorrectly handled USB device emulation. An\nattacker inside the guest could use this issue to cause QEMU to hang,\nresulting in a denial of service. (CVE-2020-25625)\n\nCheolwoo Myung discovered that QEMU incorrectly handled USB device\nemulation. An attacker inside the guest could use this issue to cause QEMU\nto crash, resulting in a denial of service. (CVE-2020-25723)\n\nGaoning Pan discovered that QEMU incorrectly handled ATI graphics device\nemulation. An attacker inside the guest could use this issue to cause QEMU\nto crash, resulting in a denial of service. This issue only affected Ubuntu\n20.04 LTS and Ubuntu 20.10. (CVE-2020-27616)\n\nGaoning Pan discovered that QEMU incorrectly handled networking. An\nattacker inside the guest could use this issue to cause QEMU to crash,\nresulting in a denial of service. (CVE-2020-27617)\n","modified":"2026-02-10T04:41:59Z","published":"2020-11-30T12:25:14Z","related":["UBUNTU-CVE-2020-17380","UBUNTU-CVE-2020-25084","UBUNTU-CVE-2020-25085","UBUNTU-CVE-2020-25624","UBUNTU-CVE-2020-25625","UBUNTU-CVE-2020-25723","UBUNTU-CVE-2020-27616","UBUNTU-CVE-2020-27617"],"upstream":["CVE-2020-17380","CVE-2020-25084","CVE-2020-25085","CVE-2020-25624","CVE-2020-25625","CVE-2020-25723","CVE-2020-27616","CVE-2020-27617","UBUNTU-CVE-2020-17380","UBUNTU-CVE-2020-25084","UBUNTU-CVE-2020-25085","UBUNTU-CVE-2020-25624","UBUNTU-CVE-2020-25625","UBUNTU-CVE-2020-25723","UBUNTU-CVE-2020-27616","UBUNTU-CVE-2020-27617"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4650-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-17380"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-25084"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-25085"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-25624"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-25625"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-25723"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-27616"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-27617"}],"affected":[{"package":{"name":"qemu","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/qemu@1:2.5+dfsg-5ubuntu10.48?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.5+dfsg-5ubuntu10.48"}]}],"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","1:2.5+dfsg-5ubuntu10.29","1:2.5+dfsg-5ubuntu10.30","1:2.5+dfsg-5ubuntu10.31","1:2.5+dfsg-5ubuntu10.32","1:2.5+dfsg-5ubuntu10.33","1:2.5+dfsg-5ubuntu10.34","1:2.5+dfsg-5ubuntu10.35","1:2.5+dfsg-5ubuntu10.36","1:2.5+dfsg-5ubuntu10.37","1:2.5+dfsg-5ubuntu10.38","1:2.5+dfsg-5ubuntu10.39","1:2.5+dfsg-5ubuntu10.40","1:2.5+dfsg-5ubuntu10.41","1:2.5+dfsg-5ubuntu10.42","1:2.5+dfsg-5ubuntu10.43","1:2.5+dfsg-5ubuntu10.44","1:2.5+dfsg-5ubuntu10.45","1:2.5+dfsg-5ubuntu10.46","1:2.5+dfsg-5ubuntu10.47"],"ecosystem_specific":{"binaries":[{"binary_name":"qemu","binary_version":"1:2.5+dfsg-5ubuntu10.48"},{"binary_name":"qemu-block-extra","binary_version":"1:2.5+dfsg-5ubuntu10.48"},{"binary_name":"qemu-guest-agent","binary_version":"1:2.5+dfsg-5ubuntu10.48"},{"binary_name":"qemu-kvm","binary_version":"1:2.5+dfsg-5ubuntu10.48"},{"binary_name":"qemu-system","binary_version":"1:2.5+dfsg-5ubuntu10.48"},{"binary_name":"qemu-system-aarch64","binary_version":"1:2.5+dfsg-5ubuntu10.48"},{"binary_name":"qemu-system-arm","binary_version":"1:2.5+dfsg-5ubuntu10.48"},{"binary_name":"qemu-system-common","binary_version":"1:2.5+dfsg-5ubuntu10.48"},{"binary_name":"qemu-system-mips","binary_version":"1:2.5+dfsg-5ubuntu10.48"},{"binary_name":"qemu-system-misc","binary_version":"1:2.5+dfsg-5ubuntu10.48"},{"binary_name":"qemu-system-ppc","binary_version":"1:2.5+dfsg-5ubuntu10.48"},{"binary_name":"qemu-system-s390x","binary_version":"1:2.5+dfsg-5ubuntu10.48"},{"binary_name":"qemu-system-sparc","binary_version":"1:2.5+dfsg-5ubuntu10.48"},{"binary_name":"qemu-system-x86","binary_version":"1:2.5+dfsg-5ubuntu10.48"},{"binary_name":"qemu-user","binary_version":"1:2.5+dfsg-5ubuntu10.48"},{"binary_name":"qemu-user-binfmt","binary_version":"1:2.5+dfsg-5ubuntu10.48"},{"binary_name":"qemu-user-static","binary_version":"1:2.5+dfsg-5ubuntu10.48"},{"binary_name":"qemu-utils","binary_version":"1:2.5+dfsg-5ubuntu10.48"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4650-1.json","cves_map":{"ecosystem":"Ubuntu:16.04:LTS","cves":[{"id":"CVE-2020-17380","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-25084","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]},{"id":"CVE-2020-25085","severity":[{"score":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:L","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-25624","severity":[{"score":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:L","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]},{"id":"CVE-2020-25625","severity":[{"score":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]},{"id":"CVE-2020-25723","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-27617","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]}]}}},{"package":{"name":"qemu","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/qemu@1:2.11+dfsg-1ubuntu7.34?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.11+dfsg-1ubuntu7.34"}]}],"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","1:2.11+dfsg-1ubuntu7.2","1:2.11+dfsg-1ubuntu7.3","1:2.11+dfsg-1ubuntu7.4","1:2.11+dfsg-1ubuntu7.5","1:2.11+dfsg-1ubuntu7.6","1:2.11+dfsg-1ubuntu7.7","1:2.11+dfsg-1ubuntu7.8","1:2.11+dfsg-1ubuntu7.9","1:2.11+dfsg-1ubuntu7.10","1:2.11+dfsg-1ubuntu7.12","1:2.11+dfsg-1ubuntu7.13","1:2.11+dfsg-1ubuntu7.14","1:2.11+dfsg-1ubuntu7.15","1:2.11+dfsg-1ubuntu7.17","1:2.11+dfsg-1ubuntu7.18","1:2.11+dfsg-1ubuntu7.19","1:2.11+dfsg-1ubuntu7.20","1:2.11+dfsg-1ubuntu7.21","1:2.11+dfsg-1ubuntu7.22","1:2.11+dfsg-1ubuntu7.23","1:2.11+dfsg-1ubuntu7.25","1:2.11+dfsg-1ubuntu7.26","1:2.11+dfsg-1ubuntu7.27","1:2.11+dfsg-1ubuntu7.28","1:2.11+dfsg-1ubuntu7.29","1:2.11+dfsg-1ubuntu7.31","1:2.11+dfsg-1ubuntu7.32","1:2.11+dfsg-1ubuntu7.33"],"ecosystem_specific":{"binaries":[{"binary_name":"qemu","binary_version":"1:2.11+dfsg-1ubuntu7.34"},{"binary_name":"qemu-block-extra","binary_version":"1:2.11+dfsg-1ubuntu7.34"},{"binary_name":"qemu-guest-agent","binary_version":"1:2.11+dfsg-1ubuntu7.34"},{"binary_name":"qemu-kvm","binary_version":"1:2.11+dfsg-1ubuntu7.34"},{"binary_name":"qemu-system","binary_version":"1:2.11+dfsg-1ubuntu7.34"},{"binary_name":"qemu-system-arm","binary_version":"1:2.11+dfsg-1ubuntu7.34"},{"binary_name":"qemu-system-common","binary_version":"1:2.11+dfsg-1ubuntu7.34"},{"binary_name":"qemu-system-mips","binary_version":"1:2.11+dfsg-1ubuntu7.34"},{"binary_name":"qemu-system-misc","binary_version":"1:2.11+dfsg-1ubuntu7.34"},{"binary_name":"qemu-system-ppc","binary_version":"1:2.11+dfsg-1ubuntu7.34"},{"binary_name":"qemu-system-s390x","binary_version":"1:2.11+dfsg-1ubuntu7.34"},{"binary_name":"qemu-system-sparc","binary_version":"1:2.11+dfsg-1ubuntu7.34"},{"binary_name":"qemu-system-x86","binary_version":"1:2.11+dfsg-1ubuntu7.34"},{"binary_name":"qemu-user","binary_version":"1:2.11+dfsg-1ubuntu7.34"},{"binary_name":"qemu-user-binfmt","binary_version":"1:2.11+dfsg-1ubuntu7.34"},{"binary_name":"qemu-user-static","binary_version":"1:2.11+dfsg-1ubuntu7.34"},{"binary_name":"qemu-utils","binary_version":"1:2.11+dfsg-1ubuntu7.34"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4650-1.json","cves_map":{"ecosystem":"Ubuntu:18.04:LTS","cves":[{"id":"CVE-2020-17380","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-25084","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]},{"id":"CVE-2020-25085","severity":[{"score":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:L","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-25624","severity":[{"score":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:L","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]},{"id":"CVE-2020-25625","severity":[{"score":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]},{"id":"CVE-2020-25723","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-27617","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]}]}}},{"package":{"name":"qemu","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/qemu@1:4.2-3ubuntu6.10?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:4.2-3ubuntu6.10"}]}],"versions":["1:4.0+dfsg-0ubuntu9","1:4.0+dfsg-0ubuntu10","1:4.2-1ubuntu1","1:4.2-1ubuntu2","1:4.2-3ubuntu1","1:4.2-3ubuntu2","1:4.2-3ubuntu3","1:4.2-3ubuntu4","1:4.2-3ubuntu5","1:4.2-3ubuntu6","1:4.2-3ubuntu6.1","1:4.2-3ubuntu6.2","1:4.2-3ubuntu6.3","1:4.2-3ubuntu6.4","1:4.2-3ubuntu6.5","1:4.2-3ubuntu6.6","1:4.2-3ubuntu6.7","1:4.2-3ubuntu6.8","1:4.2-3ubuntu6.9"],"ecosystem_specific":{"binaries":[{"binary_name":"qemu","binary_version":"1:4.2-3ubuntu6.10"},{"binary_name":"qemu-block-extra","binary_version":"1:4.2-3ubuntu6.10"},{"binary_name":"qemu-guest-agent","binary_version":"1:4.2-3ubuntu6.10"},{"binary_name":"qemu-kvm","binary_version":"1:4.2-3ubuntu6.10"},{"binary_name":"qemu-system","binary_version":"1:4.2-3ubuntu6.10"},{"binary_name":"qemu-system-arm","binary_version":"1:4.2-3ubuntu6.10"},{"binary_name":"qemu-system-common","binary_version":"1:4.2-3ubuntu6.10"},{"binary_name":"qemu-system-data","binary_version":"1:4.2-3ubuntu6.10"},{"binary_name":"qemu-system-gui","binary_version":"1:4.2-3ubuntu6.10"},{"binary_name":"qemu-system-mips","binary_version":"1:4.2-3ubuntu6.10"},{"binary_name":"qemu-system-misc","binary_version":"1:4.2-3ubuntu6.10"},{"binary_name":"qemu-system-ppc","binary_version":"1:4.2-3ubuntu6.10"},{"binary_name":"qemu-system-s390x","binary_version":"1:4.2-3ubuntu6.10"},{"binary_name":"qemu-system-sparc","binary_version":"1:4.2-3ubuntu6.10"},{"binary_name":"qemu-system-x86","binary_version":"1:4.2-3ubuntu6.10"},{"binary_name":"qemu-system-x86-microvm","binary_version":"1:4.2-3ubuntu6.10"},{"binary_name":"qemu-system-x86-xen","binary_version":"1:4.2-3ubuntu6.10"},{"binary_name":"qemu-user","binary_version":"1:4.2-3ubuntu6.10"},{"binary_name":"qemu-user-binfmt","binary_version":"1:4.2-3ubuntu6.10"},{"binary_name":"qemu-user-static","binary_version":"1:4.2-3ubuntu6.10"},{"binary_name":"qemu-utils","binary_version":"1:4.2-3ubuntu6.10"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4650-1.json","cves_map":{"ecosystem":"Ubuntu:20.04:LTS","cves":[{"id":"CVE-2020-17380","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-25084","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]},{"id":"CVE-2020-25085","severity":[{"score":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:L","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-25624","severity":[{"score":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:L","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]},{"id":"CVE-2020-25625","severity":[{"score":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]},{"id":"CVE-2020-25723","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-27616","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]},{"id":"CVE-2020-27617","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]}]}}}],"schema_version":"1.7.3"}