CVE-2018-15469

xen: Use of v2 grant tables may cause crash on ARM (XSA-268)

Published Aug 17, 2018 CVSS 3.0 · 6.5 Medium EPSS < 1% KEV · Not listed
Description
An issue was discovered in Xen through 4.11.x. ARM never properly implemented grant table v2, either in the hypervisor or in Linux. Unfortunately, an ARM guest can still request v2 grant tables; they will simply not be properly set up, resulting in subsequent grant-related hypercalls hitting BUG() checks. An unprivileged guest can cause a BUG() check in the hypervisor, resulting in a denial-of-service (crash).

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-1577-1 xen security update
EUVD EUVD EUVD-2018-7347 An issue was discovered in Xen through 4.11.x. ARM never properly implemented grant table v2, either in the hypervisor or in Linux. Unfortunately, an ARM guest can still request v2 grant tables; they will simply not be properly set up, resulting in subsequent grant-related hypercalls hitting BUG() checks. An unprivileged guest can cause a BUG() check in the hypervisor, resulting in a denial-of-service (crash).
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Aug 5, 2024, 9:54 AM
Reserved
Aug 17, 2018, 12:00 AM
Status
Modified
Published
Aug 17, 2018, 6:29 PM
Modified
Jun 17, 2026, 1:42 AM
Severity
Moderate
Public date
Aug 14, 2018, 5:00 PM