CVE-2013-1917

Xen 3.1-4.x - Denial of Service via Improper NT Flag Handling

Title source: llm
STIX 2.1

Description

Xen 3.1 through 4.x, when running 64-bit hosts on Intel CPUs, does not clear the NT flag when using an IRET after a SYSENTER instruction, which allows PV guest users to cause a denial of service (hypervisor crash) by triggering a #GP fault, which is not properly handled by another IRET instruction.

References (10)

Core 10
Core References
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/55082
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1028455
Third Party Advisory vendor-advisory x_refsource_gentoo
http://security.gentoo.org/glsa/glsa-201309-24.xml
Mailing List vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-updates/2013-06/msg00049.html
Mailing List mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2013/04/18/8
Third Party Advisory vendor-advisory x_refsource_debian
http://www.debian.org/security/2012/dsa-2662
Mailing List, Third Party Advisory vendor-advisory x_refsource_fedora
http://lists.fedoraproject.org/pipermail/package-announce/2013-May/104537.html

Scores

EPSS 0.0007
EPSS Percentile 22.3%

Details

CWE
CWE-20
Status published
Products (27)
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
... and 17 more
Published May 13, 2013
Tracked Since Feb 18, 2026