7.8

CVE-2020-27670

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Xen ≫ Xen HwPlatformx86 Version <= 4.14.0
Opensuse ≫ Leap Version15.1
Opensuse ≫ Leap Version15.2
Fedoraproject ≫ Fedora Version31
Debian ≫ Debian Linux Version10.0
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.25% 0.161
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.8 1.1 6
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
nvd@nist.gov 6.9 3.4 10
AV:L/AC:M/Au:N/C:C/I:C/A:C
CWE-345 Insufficient Verification of Data Authenticity

The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data.

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