CVE-2016-2140

Publication date 12 April 2016

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

The libvirt driver in OpenStack Compute (Nova) before 2015.1.4 (kilo) and 12.0.x before 12.0.3 (liberty), when using raw storage and use_cow_images is set to false, allows remote authenticated users to read arbitrary files via a crafted qcow2 header in an ephemeral or root disk.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
nova	17.04 zesty	Not affected
	16.10 yakkety	Not affected
	16.04 LTS xenial	Not affected
	15.10 wily	Not affected
	14.04 LTS trusty	Fixed 1:2014.1.5-0ubuntu1.7
	12.04 LTS precise	Ignored end of life

Notes

sbeattie

from debian: Affects: <=2015.1.3, >=12.0.0 <=12.0.2

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
nova	Upstream: https://review.openstack.org/289960 Upstream: https://review.openstack.org/289958 Upstream: https://review.openstack.org/289957

Severity score breakdown

Parameter	Value
Base score	5.3 · Medium
Attack vector	Network
Attack complexity	High
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	None
Availability impact	None
Vector	CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

References

Related Ubuntu Security Notices (USN)

USN-3449-1
OpenStack Nova vulnerabilities
11 October 2017