CVE-2012-3516

kernel: xen: grant table entry swaps have inadequate bounds checking

Published Nov 23, 2012 CVSS 2.0 · 6.9 Medium EPSS < 1% KEV · Not listed
Description
The GNTTABOP_swap_grant_ref sub-operation in the grant table hypercall in Xen 4.2 and Citrix XenServer 6.0.2 allows local guest kernels or administrators to cause a denial of service (host crash) and possibly gain privileges via a crafted grant reference that triggers a write to an arbitrary hypervisor memory location.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2012-3471 The GNTTABOP_swap_grant_ref sub-operation in the grant table hypercall in Xen 4.2 and Citrix XenServer 6.0.2 allows local guest kernels or administrators to cause a denial of service (host crash) and possibly gain privileges via a crafted grant reference that triggers a write to an arbitrary hypervisor memory location.
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Aug 6, 2024, 8:05 PM
Reserved
Jun 14, 2012, 12:00 AM
Status
Modified
Published
Nov 23, 2012, 8:55 PM
Modified
Jun 16, 2026, 11:43 PM
Severity
Important
Public date
Sep 5, 2012, 12:00 AM