CVE-2014-1891: Integer Overflow

First published: Tue Apr 01 2014(Updated: )

Multiple integer overflows in the (1) FLASK_GETBOOL, (2) FLASK_SETBOOL, (3) FLASK_USER, and (4) FLASK_CONTEXT_TO_SID suboperations in the flask hypercall in Xen 4.3.x, 4.2.x, 4.1.x, 3.2.x, and earlier, when XSM is enabled, allow local users to cause a denial of service (processor fault) via unspecified vectors, a different vulnerability than CVE-2014-1892, CVE-2014-1893, and CVE-2014-1894.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
Xen Xen	<=4.3.0
Xen Xen	=3.2.0
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	=4.1.0
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	=4.3.1

Remedy

http://xenbits.xen.org/xsa/advisory-84.html

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