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.
References (8)
Core 8
Core References
Patch, Vendor Advisory x_refsource_confirm
http://xenbits.xen.org/xsa/advisory-347.html
Patch, Vendor Advisory x_refsource_misc
https://xenbits.xen.org/xsa/advisory-347.html
Mailing List, Third Party Advisory vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00075.html
Mailing List, Third Party Advisory vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00025.html
Third Party Advisory vendor-advisory
x_refsource_gentoo
https://security.gentoo.org/glsa/202011-06
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XIK57QJOVOPWH6RFRNMGOBCROBCKMDG2/
Third Party Advisory vendor-advisory
x_refsource_debian
https://www.debian.org/security/2020/dsa-4804
Mailing List, Third Party Advisory mailing-list
x_refsource_mlist
http://www.openwall.com/lists/oss-security/2021/01/19/9
Scores
CVSS v3
7.8
EPSS
0.0004
EPSS Percentile
13.7%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Details
CWE
CWE-345
Status
published
Products (5)
debian/debian_linux
10.0
fedoraproject/fedora
31
opensuse/leap
15.1
opensuse/leap
15.2
xen/xen
< 4.14.0
Published
Oct 22, 2020
Tracked Since
Feb 18, 2026