Description
An issue was discovered in Xen through 4.14.x. Recording of the per-vCPU control block mapping maintained by Xen and that of pointers into the control block is reversed. The consumer assumes, seeing the former initialized, that the latter are also ready for use. Malicious or buggy guest kernels can mount a Denial of Service (DoS) attack affecting the entire system.
No analysis available yet.
Remediation
No remediation available yet.
Tracking
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Advisories
| Source | ID | Title |
|---|---|---|
Debian DSA |
DSA-4812-1 | xen security update |
EUVD |
EUVD-2020-21932 | An issue was discovered in Xen through 4.14.x. Recording of the per-vCPU control block mapping maintained by Xen and that of pointers into the control block is reversed. The consumer assumes, seeing the former initialized, that the latter are also ready for use. Malicious or buggy guest kernels can mount a Denial of Service (DoS) attack affecting the entire system. |
References
History
No history.
Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2024-08-04T16:55:10.399Z
Reserved: 2020-12-04T00:00:00.000Z
Link: CVE-2020-29570
No data.
Status : Modified
Published: 2020-12-15T17:15:14.753
Modified: 2024-11-21T05:24:13.620
Link: CVE-2020-29570
No data.
OpenCVE Enrichment
No data.
Weaknesses
Debian DSA
EUVD