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 |
---|---|
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=691a02e2ce0c413236a78dee6f2651c937b09fb0 | |
http://www.securityfocus.com/bid/86067 | Third Party Advisory VDB Entry |
http://www.ubuntu.com/usn/USN-2974-1 | Third Party Advisory |
https://access.redhat.com/errata/RHSA-2017:1856 | Third Party Advisory |
https://access.redhat.com/errata/RHSA-2017:2392 | Third Party Advisory |
https://access.redhat.com/errata/RHSA-2017:2408 | Third Party Advisory |
https://bugzilla.redhat.com/show_bug.cgi?id=1313686 | Issue Tracking Third Party Advisory |
https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html | Mailing List Third Party Advisory |
https://lists.gnu.org/archive/html/qemu-devel/2016-04/msg01106.html | Patch Third Party Advisory |
https://lists.gnu.org/archive/html/qemu-devel/2016-04/msg01118.html | Patch Third Party Advisory |
https://security.gentoo.org/glsa/201609-01 | Third Party Advisory |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: redhat
Published: 2016-05-25T15:00:00
Updated: 2018-12-01T10:57:01
Reserved: 2016-04-14T00:00:00
Link: CVE-2016-4020
JSON object: View
NVD Information
Status : Modified
Published: 2016-05-25T15:59:04.927
Modified: 2023-02-13T04:50:09.340
Link: CVE-2016-4020
JSON object: View
Redhat Information
No data.
CWE