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CVE-2018-19962

Published: 8 December 2018

An issue was discovered in Xen through 4.11.x on AMD x86 platforms, possibly allowing guest OS users to gain host OS privileges because small IOMMU mappings are unsafely combined into larger ones.

Priority

Medium

Cvss 3 Severity Score

7.8

Score breakdown

Status

Package Release Status
xen
Launchpad, Ubuntu, Debian
bionic Needed

cosmic Ignored
(end of life)
disco Ignored
(end of life)
eoan Ignored
(end of life)
focal Not vulnerable
(4.11.1-1)
groovy Ignored
(end of life)
hirsute Ignored
(end of life)
impish Ignored
(end of life)
jammy Not vulnerable
(4.11.1-1)
kinetic Not vulnerable
(4.11.1-1)
lunar Not vulnerable
(4.11.1-1)
mantic Not vulnerable
(4.11.1-1)
noble Not vulnerable
(4.11.1-1)
trusty Does not exist
(trusty was needs-triage)
upstream
Released (4.11.1-1)
xenial Not vulnerable
(code not present)
Binaries built from this source package are in Universe and so are supported by the community.

Severity score breakdown

Parameter Value
Base score 7.8
Attack vector Local
Attack complexity High
Privileges required Low
User interaction None
Scope Changed
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H