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CVE-2017-7228

Published: 4 April 2017

An issue (known as XSA-212) was discovered in Xen, with fixes available for 4.8.x, 4.7.x, 4.6.x, 4.5.x, and 4.4.x. The earlier XSA-29 fix introduced an insufficient check on XENMEM_exchange input, allowing the caller to drive hypervisor memory accesses outside of the guest provided input/output arrays.

Priority

Medium

Cvss 3 Severity Score

8.2

Score breakdown

Status

Package Release Status
xen
Launchpad, Ubuntu, Debian
precise Ignored
(end of life)
trusty
Released (4.4.2-0ubuntu0.14.04.11)
upstream Needs triage

xenial
Released (4.6.5-0ubuntu1.1)
yakkety
Released (4.7.2-0ubuntu1.2)
zesty
Released (4.8.0-1ubuntu2.1)
Binaries built from this source package are in Universe and so are supported by the community.

Severity score breakdown

Parameter Value
Base score 8.2
Attack vector Local
Attack complexity Low
Privileges required High
User interaction None
Scope Changed
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H