Rapid7 Vulnerability & Exploit Database

Gentoo Linux: CVE-2020-29570: Xen: Multiple vulnerabilities

Back to Search

Gentoo Linux: CVE-2020-29570: 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. 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.

Solution(s)

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

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;