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Gentoo Linux: CVE-2020-29568: Xen: Multiple vulnerabilities

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Gentoo Linux: CVE-2020-29568: Xen: Multiple vulnerabilities

Severity
5
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:C)
Published
12/15/2020
Created
07/14/2021
Added
07/13/2021
Modified
07/13/2021

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.

Solution(s)

  • gentoo-linux-upgrade-app-emulation-xen

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