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.
References
Link | Resource |
---|---|
http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140418.html | Third Party Advisory |
http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140483.html | Third Party Advisory |
http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00002.html | Third Party Advisory |
http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00003.html | Third Party Advisory |
http://secunia.com/advisories/61858 | |
http://secunia.com/advisories/61890 | |
http://security.gentoo.org/glsa/glsa-201412-42.xml | |
http://support.citrix.com/article/CTX200218 | Third Party Advisory |
http://www.debian.org/security/2014/dsa-3041 | Third Party Advisory |
http://www.securityfocus.com/bid/70057 | Third Party Advisory VDB Entry |
http://www.securitytracker.com/id/1030888 | Third Party Advisory VDB Entry |
http://xenbits.xen.org/xsa/advisory-105.html | Patch Vendor Advisory |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: mitre
Published: 2014-10-02T14:00:00
Updated: 2016-12-30T16:57:01
Reserved: 2014-09-24T00:00:00
Link: CVE-2014-7155
JSON object: View
NVD Information
Status : Modified
Published: 2014-10-02T14:55:05.120
Modified: 2018-10-30T16:27:34.687
Link: CVE-2014-7155
JSON object: View
Redhat Information
No data.
CWE