Description
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.
Published: 2020-12-15
Score: 6.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-2557-1 linux-4.19 security update
Debian DLA Debian DLA DLA-2586-1 linux security update
Debian DSA Debian DSA DSA-4843-1 linux security update
EUVD EUVD EUVD-2020-21930 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.
Ubuntu USN Ubuntu USN USN-4748-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-4749-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-4750-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-4751-1 Linux kernel vulnerabilities
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

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

Reserved: 2020-12-04T00:00:00.000Z

Link: CVE-2020-29568

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

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

Modified: 2024-11-21T05:24:13.270

Link: CVE-2020-29568

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses