Vulnerability Details CVE-2014-7155
The x86_emulate function in arch/x86/x86_emulate/x86_emulate.c in Xen 4.4.x and earlier does not properly check supervisor mode permissions, which allows local HVM users to cause a denial of service (guest crash) or gain guest kernel mode privileges via vectors involving an (1) HLT, (2) LGDT, (3) LIDT, or (4) LMSW instruction.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.008
EPSS Ranking 72.7%
CVSS Severity
CVSS v2 Score 5.8
Products affected by CVE-2014-7155
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cpe:2.3:o:debian:debian_linux:7.0
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cpe:2.3:o:fedoraproject:fedora:19
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cpe:2.3:o:fedoraproject:fedora:20
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cpe:2.3:o:opensuse:opensuse:12.3
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cpe:2.3:o:opensuse:opensuse:13.1
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cpe:2.3:o:xen:xen:4.1.6.1
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