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.
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Affected Vendors & Products
References
History
No history.
Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2024-08-06T12:40:19.135Z
Reserved: 2014-09-24T00:00:00.000Z
Link: CVE-2014-7155
No data.
Status : Modified
Published: 2014-10-02T14:55:05.120
Modified: 2026-05-06T22:30:45.220
Link: CVE-2014-7155
OpenCVE Enrichment
No data.