Unrated severityNVD Advisory· Published Dec 13, 2013· Updated Jun 17, 2026
CVE-2013-6400
CVE-2013-6400
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
7cpe:2.3:o:xen:xen:4.2.0:*:*:*:*:*:*:*+ 6 more
- cpe:2.3:o:xen:xen:4.2.0:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.2.1:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.2.2:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.2.3:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.3.0:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.3.1:*:*:*:*:*:*:*
- (no CPE)range: 4.2.x, 4.3.x
Patches
Vulnerability mechanics
References
8- secunia.com/advisories/55932nvdVendor Advisory
- lists.fedoraproject.org/pipermail/package-announce/2013-December/125081.htmlnvd
- lists.fedoraproject.org/pipermail/package-announce/2013-December/125111.htmlnvd
- lists.opensuse.org/opensuse-security-announce/2014-03/msg00011.htmlnvd
- lists.xen.org/archives/html/xen-announce/2013-12/msg00002.htmlnvd
- security.gentoo.org/glsa/glsa-201407-03.xmlnvd
- www.openwall.com/lists/oss-security/2013/12/10/7nvd
- www.securitytracker.com/id/1029468nvd
News mentions
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