An issue was discovered in Xen through 4.14.x. Some OSes (such as Linux, FreeBSD, and NetBSD) are processing watch events using a single thread. If the events are received faster than the thread is able to handle, they will get queued. As the queue is unbounded, a guest may be able to trigger an OOM in the backend. All systems with a FreeBSD, Linux, or NetBSD (any version) dom0 are vulnerable.
History

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2020-12-15T16:52:04

Updated: 2024-08-04T16:55:10.345Z

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

Link: CVE-2020-29568

cve-icon Vulnrichment

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cve-icon NVD

Status : Analyzed

Published: 2020-12-15T17:15:14.660

Modified: 2022-04-26T16:12:15.237

Link: CVE-2020-29568

cve-icon Redhat

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