CVE-2014-8595

First published: Wed Nov 19 2014(Updated: )

arch/x86/x86_emulate/x86_emulate.c in Xen 3.2.1 through 4.4.x does not properly check privileges, which allows local HVM guest users to gain privileges or cause a denial of service (crash) via a crafted (1) CALL, (2) JMP, (3) RETF, (4) LCALL, (5) LJMP, or (6) LRET far branch instruction.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
Debian Debian Linux	=7.0
Xen Xen	=3.2.1
Xen Xen	=3.2.2
Xen Xen	=3.2.3
Xen Xen	=3.3.0
Xen Xen	=3.3.1
Xen Xen	=3.3.2
Xen Xen	=3.4.0
Xen Xen	=3.4.1
Xen Xen	=3.4.2
Xen Xen	=3.4.3
Xen Xen	=3.4.4
Xen Xen	=4.0.0
Xen Xen	=4.0.1
Xen Xen	=4.0.2
Xen Xen	=4.0.3
Xen Xen	=4.0.4
Xen Xen	=4.1.0
Xen Xen	=4.1.1
Xen Xen	=4.1.2
Xen Xen	=4.1.3
Xen Xen	=4.1.4
Xen Xen	=4.1.5
Xen Xen	=4.1.6.1
Xen Xen	=4.2.0
Xen Xen	=4.2.1
Xen Xen	=4.2.2
Xen Xen	=4.2.3
Xen Xen	=4.3.0
Xen Xen	=4.3.1
Xen Xen	=4.4.0
openSUSE openSUSE	=13.1
openSUSE openSUSE	=13.2

Remedy

http://xenbits.xen.org/xsa/advisory-110.html

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