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.
History

No history.

cve-icon MITRE Information

Status: PUBLISHED

Assigner: mitre

Published: 2020-12-15T17:01:36

Updated: 2021-07-12T04:06:16

Reserved: 2020-12-04T00:00:00


Link: CVE-2020-29570

JSON object: View

cve-icon NVD Information

Status : Modified

Published: 2020-12-15T17:15:14.753

Modified: 2023-11-07T03:21:31.957


Link: CVE-2020-29570

JSON object: View

cve-icon Redhat Information

No data.

CWE