CVE-2014-7155
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Description
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140418.html
- http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140483.html
- http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00002.html
- http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00003.html
- http://security.gentoo.org/glsa/glsa-201412-42.xml
References (12)
Quick Info
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