Vulnerability Description
The x86_emulate function in arch/x86/x86_emulate/x86_emulate.c in Xen 3.3.x through 4.4.x does not check the supervisor mode permissions for instructions that generate software interrupts, which allows local HVM guest users to cause a denial of service (guest crash) via unspecified vectors.
CVSS Score
LOW
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Xen | Xen | 3.3.0 |
Related Weaknesses (CWE)
References
- http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140418.ht
- http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140483.ht
- http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00002.html
- http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00003.html
- http://secunia.com/advisories/61500
- 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
- http://www.debian.org/security/2014/dsa-3041
- http://www.securityfocus.com/bid/70062
- http://www.securitytracker.com/id/1030889
- http://xenbits.xen.org/xsa/advisory-106.htmlPatchVendor Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140418.ht
- http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140483.ht
FAQ
What is CVE-2014-7156?
CVE-2014-7156 is a vulnerability with a CVSS score of 3.3 (LOW). The x86_emulate function in arch/x86/x86_emulate/x86_emulate.c in Xen 3.3.x through 4.4.x does not check the supervisor mode permissions for instructions that generate software interrupts, which allow...
How severe is CVE-2014-7156?
CVE-2014-7156 has been rated LOW with a CVSS base score of 3.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2014-7156?
Check the references section above for vendor advisories and patch information. Affected products include: Xen Xen.