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.
Analysis and contextual insights are available on OpenCVE Cloud.
Remediation
No vendor fix or workaround currently provided.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
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Advisories
| Source | ID | Title |
|---|---|---|
Debian DSA |
DSA-2662-1 | xen security update |
EUVD |
EUVD-2013-1911 | 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
History
No history.
Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2024-08-06T15:20:37.316Z
Reserved: 2013-02-19T00:00:00.000Z
Link: CVE-2013-1917
No data.
Status : Modified
Published: 2013-05-13T23:55:01.757
Modified: 2026-04-29T01:13:23.040
Link: CVE-2013-1917
OpenCVE Enrichment
No data.
Weaknesses
Debian DSA
EUVD