CVE-2012-5571

Publication date 28 November 2012

Last updated 14 May 2026

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

5.4 · Medium

Score breakdown

Description

A flaw was found in OpenStack Keystone. This vulnerability allows remote authenticated users to bypass intended authorization restrictions. This occurs because OpenStack Keystone does not properly handle EC2 (Elastic Compute Cloud) tokens when a user's role has been removed from a tenant. An attacker can leverage a token associated with a removed user role to gain unauthorized access.

Read the notes from the security team

Status

Package Ubuntu Release Status
keystone 12.10 quantal
Fixed 2012.2-0ubuntu1.2
12.04 LTS precise
Fixed 2012.1+stable~20120824-a16a0ab9-0ubuntu2.3
11.10 oneiric Ignored
10.04 LTS lucid Not in release
8.04 LTS hardy Not in release

Notes

jdstrand

Keystone on 11.10 is a pre-release version and unusable with other components such as nova and horizon

Severity score breakdown

CVSS version: CVSS v3.0

Base score 5.4 · Medium

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

References

Related Ubuntu Security Notices (USN)

    • USN-1641-1
    • OpenStack Keystone vulnerabilities
    • 28 November 2012

Other references

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