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
Configurations
Configuration 1 (hide)
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Configuration 2 (hide)
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Configuration 3 (hide)
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Configuration 4 (hide)
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History
21 Nov 2024, 02:16
| Type | Values Removed | Values Added |
|---|---|---|
| References | () http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140418.html - Third Party Advisory | |
| References | () http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140483.html - Third Party Advisory | |
| References | () http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00002.html - Third Party Advisory | |
| References | () http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00003.html - Third Party Advisory | |
| References | () http://secunia.com/advisories/61858 - | |
| References | () http://secunia.com/advisories/61890 - | |
| References | () http://security.gentoo.org/glsa/glsa-201412-42.xml - | |
| References | () http://support.citrix.com/article/CTX200218 - Third Party Advisory | |
| References | () http://www.debian.org/security/2014/dsa-3041 - Third Party Advisory | |
| References | () http://www.securityfocus.com/bid/70057 - Third Party Advisory, VDB Entry | |
| References | () http://www.securitytracker.com/id/1030888 - Third Party Advisory, VDB Entry | |
| References | () http://xenbits.xen.org/xsa/advisory-105.html - Patch, Vendor Advisory |
Information
Published : 2014-10-02 14:55
Updated : 2024-11-21 02:16
NVD link : CVE-2014-7155
Mitre link : CVE-2014-7155
CVE.ORG link : CVE-2014-7155
JSON object : View
Products Affected
debian
- debian_linux
fedoraproject
- fedora
xen
- xen
opensuse
- opensuse
CWE
CWE-264
Permissions, Privileges, and Access Controls