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 |
Configurations
Configuration 1 (hide)
|
Configuration 2 (hide)
|
Configuration 3 (hide)
|
Configuration 4 (hide)
|
History
No history.
Information
Published : 2014-10-02 14:55
Updated : 2023-12-10 11:31
NVD link : CVE-2014-7155
Mitre link : CVE-2014-7155
CVE.ORG link : CVE-2014-7155
JSON object : View
Products Affected
opensuse
- opensuse
fedoraproject
- fedora
debian
- debian_linux
xen
- xen
CWE
CWE-264
Permissions, Privileges, and Access Controls