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CVE-2017-14317

Published: 12 September 2017

A domain cleanup issue was discovered in the C xenstore daemon (aka cxenstored) in Xen through 4.9.x. When shutting down a VM with a stubdomain, a race in cxenstored may cause a double-free. The xenstored daemon may crash, resulting in a DoS of any parts of the system relying on it (including domain creation / destruction, ballooning, device changes, etc.).

Priority

Medium

Cvss 3 Severity Score

5.6

Score breakdown

Status

Package Release Status
xen
Launchpad, Ubuntu, Debian
trusty
Released (4.4.2-0ubuntu0.14.04.14)
upstream Needs triage

xenial
Released (4.6.5-0ubuntu1.4)
zesty
Released (4.8.0-1ubuntu2.4)
Binaries built from this source package are in Universe and so are supported by the community.

Severity score breakdown

Parameter Value
Base score 5.6
Attack vector Local
Attack complexity High
Privileges required Low
User interaction None
Scope Changed
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H