CVE-2015-8234

Publication date 29 March 2017

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

The image signature algorithm in OpenStack Glance 11.0.0 allows remote attackers to bypass the signature verification process via a crafted image, which triggers an MD5 collision.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
glance	16.04 LTS xenial	Not affected
	15.10 wily	Ignored end of life
	15.04 vivid	Not affected
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Not affected

Notes

mdeslaur

signatures introduced in 11.x

Patch details

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

Package	Patch details
glance	Upstream: https://review.openstack.org/gitweb?p=openstack/glance.git;a=commitdiff;h=09a0acefc7d27b85e7145611a3852bcf0765f769

Severity score breakdown

CVSS version: CVSS v3.0

Base score 5.5 · Medium

Base metrics

Parameter	Value
Attack vector	Local
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality impact	None
Integrity impact	High
Availability impact	None

Scores

Parameter	Value
Base score	5.5 · Medium
Exploitability score	-
Impact score	-

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N