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).
References
Link | Resource |
---|---|
https://lists.gnu.org/archive/html/qemu-devel/2016-04/msg01118.html | Patch Third Party Advisory |
https://bugzilla.redhat.com/show_bug.cgi?id=1313686 | Issue Tracking Third Party Advisory |
https://lists.gnu.org/archive/html/qemu-devel/2016-04/msg01106.html | Patch Third Party Advisory |
http://www.ubuntu.com/usn/USN-2974-1 | Third Party Advisory |
http://www.securityfocus.com/bid/86067 | Third Party Advisory VDB Entry |
https://security.gentoo.org/glsa/201609-01 | Third Party Advisory |
https://access.redhat.com/errata/RHSA-2017:2408 | Third Party Advisory |
https://access.redhat.com/errata/RHSA-2017:2392 | Third Party Advisory |
https://access.redhat.com/errata/RHSA-2017:1856 | Third Party Advisory |
https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html | Mailing List Third Party Advisory |
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=691a02e2ce0c413236a78dee6f2651c937b09fb0 |
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Information
Published : 2016-05-25 08:59
Updated : 2023-02-12 20:50
NVD link : CVE-2016-4020
Mitre link : CVE-2016-4020
JSON object : View
CWE
Products Affected
redhat
- enterprise_linux_desktop
- enterprise_linux_server_aus
- enterprise_linux_workstation
- openstack
- virtualization
- enterprise_linux
- enterprise_linux_server_tus
- enterprise_linux_server
- enterprise_linux_eus
canonical
- ubuntu_linux
qemu
- qemu
debian
- debian_linux