CVE-2017-15597

xen: pin count / page reference race in grant table code (XSA-236)

Published Oct 30, 2017 CVSS 3.0 · 9.1 Critical EPSS 2.8% KEV · Not listed
Description
An issue was discovered in Xen through 4.9.x. Grant copying code made an implication that any grant pin would be accompanied by a suitable page reference. Other portions of code, however, did not match up with that assumption. When such a grant copy operation is being done on a grant of a dying domain, the assumption turns out wrong. A malicious guest administrator can cause hypervisor memory corruption, most likely resulting in host crash and a Denial of Service. Privilege escalation and information leaks cannot be ruled out.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-1549-1 xen security update
Debian DSA Debian DSA DSA-4050-1 xen security update
EUVD EUVD EUVD-2017-7049 An issue was discovered in Xen through 4.9.x. Grant copying code made an implication that any grant pin would be accompanied by a suitable page reference. Other portions of code, however, did not match up with that assumption. When such a grant copy operation is being done on a grant of a dying domain, the assumption turns out wrong. A malicious guest administrator can cause hypervisor memory corruption, most likely resulting in host crash and a Denial of Service. Privilege escalation and information leaks cannot be ruled out.
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Aug 5, 2024, 7:57 PM
Reserved
Oct 18, 2017, 12:00 AM
Status
Modified
Published
Oct 30, 2017, 2:29 PM
Modified
Jun 17, 2026, 1:07 AM
Severity
Moderate
Public date
Oct 24, 2017, 12:00 AM