Name: CVE-2016-3159: Exposure of Sensitive Information to an Unauthorized Actor
Creator: Rapid7
Published: 2016-04-13T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2016-3159, CWE-200, CWE-284, CVSS 3.8, EPSS 0.00037

The fpu_fxrstor function in arch/x86/i387.c in Xen 4.x does not properly handle writes to the hardware FSW.ES bit when running on AMD64 processors, which allows local guest OS users to obtain sensitive register content information from another guest by leveraging pending exception and mask bits. NOTE: this vulnerability exists because of an incorrect fix for CVE-2013-2076.

CVSS Details

CVSS 3.1 Base Score: 3.8
CVSS 3.0 Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Alpine Linux	—	Upgrade xen	Aug 30, 2017	Apr 19, 2016
Debian	—	Upgrade xen	Apr 22, 2016	Apr 13, 2016
Suse	—	Upgrade xen-libs-32bitUpgrade xen-doc-htmlUpgrade xenUpgrade xen-tools-domUUpgrade xen-kmp-traceUpgrade xen-toolsUpgrade xen-doc-pdfUpgrade xen-kmp-paeUpgrade xen-libsUpgrade xen-develUpgrade xen-kmp-default	Aug 26, 2016	Apr 13, 2016
Ubuntu	—	Upgrade xen	Nov 19, 2024	Apr 13, 2016

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CVSS Details

Covered by Rapid7

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