CVE-2020-27670

HighCVSS 7.8/10Last modified Jun 17, 2026

Description

An issue was discovered in Xen through 4.14.x allowing x86 guest OS users to cause a denial of service (data corruption), cause a data leak, or possibly gain privileges because an AMD IOMMU page-table entry can be half-updated.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Weakness enumeration

CWE-345

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00075.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00025.htmlMailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/01/19/9Mailing List, Third Party Advisory
http://xenbits.xen.org/xsa/advisory-347.htmlPatch, Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XIK57QJOVOPWH6RFRNMGOBCROBCKMDG2/
https://security.gentoo.org/glsa/202011-06Third Party Advisory
https://www.debian.org/security/2020/dsa-4804Third Party Advisory
https://xenbits.xen.org/xsa/advisory-347.htmlPatch, Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00075.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00025.htmlMailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/01/19/9Mailing List, Third Party Advisory
http://xenbits.xen.org/xsa/advisory-347.htmlPatch, Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XIK57QJOVOPWH6RFRNMGOBCROBCKMDG2/
https://security.gentoo.org/glsa/202011-06Third Party Advisory
https://www.debian.org/security/2020/dsa-4804Third Party Advisory
https://xenbits.xen.org/xsa/advisory-347.htmlPatch, Vendor Advisory

Timeline

Published: Oct 22, 2020
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2020

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