Vulnerabilities
Misconfiguration
Compliance
CVE Vulnerabilities

CVE-2014-7155

Published: Oct 02, 2014 | Modified: Apr 12, 2025
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
5.8 MEDIUM
AV:A/AC:L/Au:N/C:P/I:P/A:P
RedHat/V2
6.2 IMPORTANT
AV:L/AC:H/Au:N/C:C/I:C/A:C
RedHat/V3
Ubuntu
MEDIUM
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2014-7155
CWEhttps://cwe.mitre.org/data/definitions/264.html

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 Software

NameVendorStart VersionEnd Version
XenXen*4.4.0 (including)
XenXen3.0.2 (including)3.0.2 (including)
XenXen3.0.3 (including)3.0.3 (including)
XenXen3.0.4 (including)3.0.4 (including)
XenXen3.1.3 (including)3.1.3 (including)
XenXen3.1.4 (including)3.1.4 (including)
XenXen3.2.0 (including)3.2.0 (including)
XenXen3.2.1 (including)3.2.1 (including)
XenXen3.2.2 (including)3.2.2 (including)
XenXen3.2.3 (including)3.2.3 (including)
XenXen3.3.0 (including)3.3.0 (including)
XenXen3.3.1 (including)3.3.1 (including)
XenXen3.3.2 (including)3.3.2 (including)
XenXen3.4.0 (including)3.4.0 (including)
XenXen3.4.1 (including)3.4.1 (including)
XenXen3.4.2 (including)3.4.2 (including)
XenXen3.4.3 (including)3.4.3 (including)
XenXen3.4.4 (including)3.4.4 (including)
XenXen4.0.0 (including)4.0.0 (including)
XenXen4.0.1 (including)4.0.1 (including)
XenXen4.0.2 (including)4.0.2 (including)
XenXen4.0.3 (including)4.0.3 (including)
XenXen4.0.4 (including)4.0.4 (including)
XenXen4.1.0 (including)4.1.0 (including)
XenXen4.1.1 (including)4.1.1 (including)
XenXen4.1.2 (including)4.1.2 (including)
XenXen4.1.3 (including)4.1.3 (including)
XenXen4.1.4 (including)4.1.4 (including)
XenXen4.1.5 (including)4.1.5 (including)
XenXen4.1.6.1 (including)4.1.6.1 (including)
XenXen4.2.0 (including)4.2.0 (including)
XenXen4.2.1 (including)4.2.1 (including)
XenXen4.2.2 (including)4.2.2 (including)
XenXen4.2.3 (including)4.2.3 (including)
XenXen4.3.0 (including)4.3.0 (including)
XenXen4.3.1 (including)4.3.1 (including)
XenXen4.4.0 (including)4.4.0 (including)
XenXen4.4.0-rc1 (including)4.4.0-rc1 (including)
XenUbuntudevel*
XenUbuntuprecise*
XenUbuntutrusty*
XenUbuntuutopic*
XenUbuntuvivid*
Xen-3.3Ubuntulucid*
Xen-3.3Ubuntuupstream*

References

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