Vulnerability Description
Xen 4.2.x and 4.3.x, when using Intel VT-d and a PCI device has been assigned, does not clear the flag that suppresses IOMMU TLB flushes when unspecified errors occur, which causes the TLB entries to not be flushed and allows local guest administrators to cause a denial of service (host crash) or gain privileges via unspecified vectors.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Xen | Xen | 4.2.0 |
Related Weaknesses (CWE)
References
- http://lists.fedoraproject.org/pipermail/package-announce/2013-December/125081.h
- http://lists.fedoraproject.org/pipermail/package-announce/2013-December/125111.h
- http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00011.html
- http://lists.xen.org/archives/html/xen-announce/2013-12/msg00002.html
- http://secunia.com/advisories/55932Vendor Advisory
- http://security.gentoo.org/glsa/glsa-201407-03.xml
- http://www.openwall.com/lists/oss-security/2013/12/10/7
- http://www.securitytracker.com/id/1029468
- http://lists.fedoraproject.org/pipermail/package-announce/2013-December/125081.h
- http://lists.fedoraproject.org/pipermail/package-announce/2013-December/125111.h
- http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00011.html
- http://lists.xen.org/archives/html/xen-announce/2013-12/msg00002.html
- http://secunia.com/advisories/55932Vendor Advisory
- http://security.gentoo.org/glsa/glsa-201407-03.xml
- http://www.openwall.com/lists/oss-security/2013/12/10/7
FAQ
What is CVE-2013-6400?
CVE-2013-6400 is a vulnerability with a CVSS score of 6.8 (MEDIUM). Xen 4.2.x and 4.3.x, when using Intel VT-d and a PCI device has been assigned, does not clear the flag that suppresses IOMMU TLB flushes when unspecified errors occur, which causes the TLB entries to ...
How severe is CVE-2013-6400?
CVE-2013-6400 has been rated MEDIUM with a CVSS base score of 6.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2013-6400?
Check the references section above for vendor advisories and patch information. Affected products include: Xen Xen.