CVE-2016-4020
published 2016-05-25CVE-2016-4020: 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…
medium6.5CVSS 3.1
AVLACLPRLUINSCCHINAN
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).
Affected
32 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| debian | debian_linux | — | — |
| debian | qemu | < qemu 1:2.6+dfsg-2 (bookworm) | qemu 1:2.6+dfsg-2 (bookworm) |
| qemu | qemu | <= 2.6.2 | — |
| qemu | qemu | >= 0 < 1:2.6+dfsg-2 | 1:2.6+dfsg-2 |
| qemu | qemu | >= 0 < 1:2.6+dfsg-2 | 1:2.6+dfsg-2 |
| qemu | qemu | >= 0 < 1:2.6+dfsg-2 | 1:2.6+dfsg-2 |
| qemu | qemu | >= 0 < 1:2.6+dfsg-2 | 1:2.6+dfsg-2 |
| qemu | qemu | >= 0 < 2.0.0+dfsg-2ubuntu1.24 | 2.0.0+dfsg-2ubuntu1.24 |
| qemu | qemu | >= 0 < 1:2.5+dfsg-5ubuntu10.1 | 1:2.5+dfsg-5ubuntu10.1 |
| redhat | enterprise_linux_desktop | — | — |
| redhat | enterprise_linux_eus | — | — |
| redhat | enterprise_linux_eus | — | — |
| redhat | enterprise_linux_eus | — | — |
| redhat | enterprise_linux_eus | — | — |
| redhat | enterprise_linux_server | — | — |
| redhat | enterprise_linux_server_aus | — | — |
| redhat | enterprise_linux_server_aus | — | — |
| redhat | enterprise_linux_server_aus | — | — |
| redhat | enterprise_linux_server_tus | — | — |
| redhat | enterprise_linux_server_tus | — | — |
| redhat | enterprise_linux_workstation | — | — |
CVSS provenance
nvdv3.16.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
osv6.5MEDIUM