CVE-2015-7548

Publication date 12 January 2016

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

OpenStack Compute (Nova) before 2015.1.3 (kilo) and 12.0.x before 12.0.1 (liberty), when using libvirt to spawn instances and use_cow_images is set to false, allow remote authenticated users to read arbitrary files by overwriting an instance disk with a crafted image and requesting a snapshot.

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
	15.04 vivid	Ignored end of life
	14.04 LTS trusty	Fixed 1:2014.1.5-0ubuntu1.7
	12.04 LTS precise	Ignored end of life

Severity score breakdown

Parameter	Value
Base score	3.5 · Low
Attack vector	Network
Attack complexity	High
Privileges required	Low
User interaction	None
Scope	Changed
Confidentiality	Low
Integrity impact	None
Availability impact	None
Vector	CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N

References

Related Ubuntu Security Notices (USN)

USN-3449-1
OpenStack Nova vulnerabilities
11 October 2017