CVE-2017-7995

xen: Checks access permissions to MMIO ranges only after accessing them

Published May 3, 2017 CVSS 3.0 · 3.8 Low EPSS < 1% KEV · Not listed
Description
Xen PV guest before Xen 4.3 checked access permissions to MMIO ranges only after accessing them, allowing host PCI device space memory reads, leading to information disclosure. This is an error in the get_user function. NOTE: the upstream Xen Project considers versions before 4.5.x to be EOL.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-964-1 xen security update
EUVD EUVD EUVD-2017-16965 Xen PV guest before Xen 4.3 checked access permissions to MMIO ranges only after accessing them, allowing host PCI device space memory reads, leading to information disclosure. This is an error in the get_user function. NOTE: the upstream Xen Project considers versions before 4.5.x to be EOL.
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Aug 5, 2024, 4:19 PM
Reserved
Apr 21, 2017, 12:00 AM
Status
Modified
Published
May 3, 2017, 7:59 PM
Modified
Jun 17, 2026, 1:25 AM
Severity
Low
Public date
Apr 13, 2017, 12:00 AM