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Debian: CVE-2016-3158: xen -- security update

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Debian: CVE-2016-3158: xen -- security update

Severity
2
CVSS
(AV:L/AC:L/Au:S/C:P/I:N/A:N)
Published
04/13/2016
Created
07/25/2018
Added
04/22/2016
Modified
03/02/2020

Description

The xrstor function in arch/x86/xstate.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.

Solution(s)

  • debian-upgrade-xen

References

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