CVE-2016-4020
Fixed in a distro release EPSS <1%
The patch_instruction function in hw/i386/kvmvapic.c in QEMU does not initialize the imm32 variable, which allows local guest OS administrators to obtain sensitive information from host stack memory by accessing the Task Priority Register (TPR).
Products: qemu, canonical ubuntu_linux, debian_linux, redhat openstack, redhat enterprise_linux_desktop, redhat enterprise_linux_eus, redhat enterprise_linux_server, redhat enterprise_linux_server_aus, redhat enterprise_linux_server_tus, redhat enterprise_linux_workstation, redhat virtualization
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 12 | qemu | 1:2.6+dfsg-2 |
| Debian 13 | qemu | 1:2.6+dfsg-2 |
| Debian 14 | qemu | 1:2.6+dfsg-2 |
| Debian 7 | qemu | 1.1.2+dfsg-6+deb7u14 |
| Debian 7 | qemu-kvm | 1.1.2+dfsg-6+deb7u14 |
| Debian 8 | qemu | 1:2.1+dfsg-12+deb8u8 |
| Red Hat Enterprise Linux 7 | qemu-img | 10:1.5.3-141.el7 |
| Red Hat Enterprise Linux 7 | qemu-img-rhev | 10:2.9.0-14.el7 |
| Red Hat Enterprise Linux 7 | qemu-kvm | 10:1.5.3-141.el7 |
| Red Hat Enterprise Linux 7 | qemu-kvm-common | 10:1.5.3-141.el7 |
| Red Hat Enterprise Linux 7 | qemu-kvm-common-rhev | 10:2.9.0-14.el7 |
| Red Hat Enterprise Linux 7 | qemu-kvm-debuginfo | 10:1.5.3-141.el7 |
| Red Hat Enterprise Linux 7 | qemu-kvm-rhev | 10:2.9.0-14.el7 |
| Red Hat Enterprise Linux 7 | qemu-kvm-rhev-debuginfo | 10:2.9.0-14.el7 |
| Red Hat Enterprise Linux 7 | qemu-kvm-tools | 10:1.5.3-141.el7 |
| Red Hat Enterprise Linux 7 | qemu-kvm-tools-rhev | 10:2.9.0-14.el7 |
| Red Hat openstack 10 | qemu-img-rhev | 10:2.9.0-10.el7 |
| Red Hat openstack 10 | qemu-kvm-common-rhev | 10:2.9.0-10.el7 |
| Red Hat openstack 10 | qemu-kvm-rhev | 10:2.9.0-10.el7 |
| Red Hat openstack 10 | qemu-kvm-rhev-debuginfo | 10:2.9.0-10.el7 |
| Red Hat openstack 10 | qemu-kvm-tools-rhev | 10:2.9.0-10.el7 |
| Red Hat openstack 11 | qemu-img-rhev | 10:2.9.0-10.el7 |
| Red Hat openstack 11 | qemu-kvm-common-rhev | 10:2.9.0-10.el7 |
| Red Hat openstack 11 | qemu-kvm-rhev | 10:2.9.0-10.el7 |
| Red Hat openstack 11 | qemu-kvm-rhev-debuginfo | 10:2.9.0-10.el7 |
| Red Hat openstack 11 | qemu-kvm-tools-rhev | 10:2.9.0-10.el7 |
| Red Hat openstack 6 | qemu-img-rhev | 10:2.9.0-10.el7 |
| Red Hat openstack 6 | qemu-kvm-common-rhev | 10:2.9.0-10.el7 |
| Red Hat openstack 6 | qemu-kvm-rhev | 10:2.9.0-10.el7 |
| Red Hat openstack 6 | qemu-kvm-rhev-debuginfo | 10:2.9.0-10.el7 |
| Red Hat openstack 6 | qemu-kvm-tools-rhev | 10:2.9.0-10.el7 |
| Red Hat openstack 7 | qemu-img-rhev | 10:2.9.0-10.el7 |
| Red Hat openstack 7 | qemu-kvm-common-rhev | 10:2.9.0-10.el7 |
| Red Hat openstack 7 | qemu-kvm-rhev | 10:2.9.0-10.el7 |
| Red Hat openstack 7 | qemu-kvm-rhev-debuginfo | 10:2.9.0-10.el7 |
| Red Hat openstack 7 | qemu-kvm-tools-rhev | 10:2.9.0-10.el7 |
| Red Hat openstack 8 | qemu-img-rhev | 10:2.9.0-10.el7 |
| Red Hat openstack 8 | qemu-kvm-common-rhev | 10:2.9.0-10.el7 |
| Red Hat openstack 8 | qemu-kvm-rhev | 10:2.9.0-10.el7 |
| Red Hat openstack 8 | qemu-kvm-rhev-debuginfo | 10:2.9.0-10.el7 |
| Red Hat openstack 8 | qemu-kvm-tools-rhev | 10:2.9.0-10.el7 |
| Red Hat openstack 9 | qemu-img-rhev | 10:2.9.0-10.el7 |
| Red Hat openstack 9 | qemu-kvm-common-rhev | 10:2.9.0-10.el7 |
| Red Hat openstack 9 | qemu-kvm-rhev | 10:2.9.0-10.el7 |
| Red Hat openstack 9 | qemu-kvm-rhev-debuginfo | 10:2.9.0-10.el7 |
| Red Hat openstack 9 | qemu-kvm-tools-rhev | 10:2.9.0-10.el7 |
| SUSE Linux Enterprise Desktop 12 | qemu | 2.0.2-48.19.1 |
| SUSE Linux Enterprise Desktop 12 SP1 | qemu | 2.3.1-14.1 |
| SUSE Linux Enterprise Desktop 12 SP1 | xen | 4.5.3_08-17.1 |
| SUSE Linux Enterprise Server 11 SP3-LTSS | kvm | 1.4.2-46.1 |
| SUSE Linux Enterprise Server 11 SP3-TERADATA | kvm | 1.4.2-46.1 |
| SUSE Linux Enterprise Server 11 SP4 | kvm | 1.4.2-44.1 |
| SUSE Linux Enterprise Server 11 SP4 | xen | 4.4.4_07-37.1 |
| SUSE Linux Enterprise Server 12 | qemu | 2.0.2-48.19.1 |
| SUSE Linux Enterprise Server 12 SP1 | qemu | 2.3.1-14.1 |
| SUSE Linux Enterprise Server 12 SP1 | xen | 4.5.3_08-17.1 |
| SUSE Linux Enterprise Server 12-LTSS | xen | 4.4.4_04-22.22.2 |
| SUSE Linux Enterprise Server for SAP Applications 11 SP4 | kvm | 1.4.2-44.1 |
| SUSE Linux Enterprise Server for SAP Applications 11 SP4 | xen | 4.4.4_07-37.1 |
| SUSE Linux Enterprise Server for SAP Applications 12 | qemu | 2.0.2-48.19.1 |
| SUSE Linux Enterprise Server for SAP Applications 12 | xen | 4.4.4_04-22.22.2 |
| SUSE Linux Enterprise Server for SAP Applications 12 SP1 | qemu | 2.3.1-14.1 |
| SUSE Linux Enterprise Server for SAP Applications 12 SP1 | xen | 4.5.3_08-17.1 |
| SUSE Linux Enterprise Software Development Kit 11 SP4 | xen | 4.4.4_07-37.1 |
| SUSE Linux Enterprise Software Development Kit 12 SP1 | xen | 4.5.3_08-17.1 |
| Ubuntu 14.04 LTS | qemu | 2.0.0+dfsg-2ubuntu1.24 |
| Ubuntu 16.04 LTS | qemu | 1:2.5+dfsg-5ubuntu10.1 |
| openSUSE Tumbleweed | qemu | 2.6.1-1.5 |
| openSUSE Tumbleweed | qemu-linux-user | 2.6.1-1.5 |