UBUNTU-CVE-2016-4911

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Source
https://ubuntu.com/security/CVE-2016-4911
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-4911.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2016-4911
Upstream
Withdrawn
2025-07-18T16:43:31Z
Published
2016-06-13T14:59:00Z
Modified
2025-07-16T08:19:22.616970Z
Severity
  • 4.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N CVSS Calculator
  • 4.3 (Medium) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

The Fernet Token Provider in OpenStack Identity (Keystone) 9.0.x before 9.0.1 (mitaka) allows remote authenticated users to prevent revocation of a chain of tokens and bypass intended access restrictions by rescoping a token.

References

Affected packages

Ubuntu:16.04:LTS / keystone

Package

Name
keystone
Purl
pkg:deb/ubuntu/keystone@2:9.3.0-0ubuntu3?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:9.3.0-0ubuntu3

Affected versions

2:8.*
2:8.0.0-0ubuntu1
2:9.*
2:9.0.0~b1-0ubuntu1
2:9.0.0~b2-0ubuntu1
2:9.0.0~b3-0ubuntu1
2:9.0.0~rc1-0ubuntu1
2:9.0.0-0ubuntu1
2:9.0.2-0ubuntu1
2:9.0.2-0ubuntu2
2:9.1.0-0ubuntu1
2:9.2.0-0ubuntu1
2:9.3.0-0ubuntu1
2:9.3.0-0ubuntu2

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "2:9.3.0-0ubuntu3",
            "binary_name": "keystone"
        },
        {
            "binary_version": "2:9.3.0-0ubuntu3",
            "binary_name": "keystone-doc"
        },
        {
            "binary_version": "2:9.3.0-0ubuntu3",
            "binary_name": "python-keystone"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-4911.json"