CVEvulnerability
CVE-2014-7155
5.8 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2014-10-02
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 2.0 ([email protected])
- 5.8 MEDIUM — AV:A/AC:L/Au:N/C:P/I:P/A:P
- Weaknesses
- CWE-264
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 configurations
• xen xen (<= 4.4.0)
• xen xen 3.0.2
• xen xen 3.0.3
• xen xen 3.0.4
• xen xen 3.1.3
• xen xen 3.1.4
• xen xen 3.2.0
• xen xen 3.2.1
• xen xen 3.2.2
• xen xen 3.2.3
• xen xen 3.3.0
• xen xen 3.3.1
• xen xen 3.3.2
• xen xen 3.4.0
• xen xen 3.4.1
• xen xen 3.4.2
• xen xen 3.4.3
• xen xen 3.4.4
• xen xen 4.0.0
• xen xen 4.0.1
• xen xen 4.0.2
• xen xen 4.0.3
• xen xen 4.0.4
• xen xen 4.1.0
• xen xen 4.1.1
• xen xen 4.1.2
• xen xen 4.1.3
• xen xen 4.1.4
• xen xen 4.1.5
• xen xen 4.1.6.1
• xen xen 4.2.0
• xen xen 4.2.1
• xen xen 4.2.2
• xen xen 4.2.3
• xen xen 4.3.0
• xen xen 4.3.1
• xen xen 4.4.0
• debian debian linux 7.0
• fedoraproject fedora 19
• fedoraproject fedora 20
• opensuse opensuse 12.3
• opensuse opensuse 13.1
Related
Weakness · not in database (1)
References
- 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 secunia.com
- http://secunia.com/advisories/61890 secunia.com
- http://security.gentoo.org/glsa/glsa-201412-42.xml security.gentoo.org
- 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
- 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 secunia.com
- http://secunia.com/advisories/61890 secunia.com
- http://security.gentoo.org/glsa/glsa-201412-42.xml security.gentoo.org
- 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