Vulnerability Details CVE-2014-1895
Off-by-one error in the flask_security_avc_cachestats function in xsm/flask/flask_op.c in Xen 4.2.x and 4.3.x, when the maximum number of physical CPUs are in use, allows local users to cause a denial of service (host crash) or obtain sensitive information from hypervisor memory by leveraging a FLASK_AVC_CACHESTAT hypercall, which triggers a buffer over-read.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 30.5%
CVSS Severity
CVSS v2 Score 5.8
References
- http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00011.html
- http://security.gentoo.org/glsa/glsa-201407-03.xml
- http://www.openwall.com/lists/oss-security/2014/02/07/12
- http://www.openwall.com/lists/oss-security/2014/02/10/6
- http://xenbits.xen.org/xsa/advisory-85.html
- http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00011.html
- http://security.gentoo.org/glsa/glsa-201407-03.xml
- http://www.openwall.com/lists/oss-security/2014/02/07/12
- http://www.openwall.com/lists/oss-security/2014/02/10/6
- http://xenbits.xen.org/xsa/advisory-85.html
Products affected by CVE-2014-1895
-
cpe:2.3:o:xen:xen:4.2.0
-
cpe:2.3:o:xen:xen:4.2.1
-
cpe:2.3:o:xen:xen:4.2.2
-
cpe:2.3:o:xen:xen:4.2.3
-
cpe:2.3:o:xen:xen:4.3.0
-
cpe:2.3:o:xen:xen:4.3.1