UBUNTU-CVE-2020-5390

See a problem?
Source
https://ubuntu.com/security/notices/UBUNTU-CVE-2020-5390
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-5390.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2020-5390
Related
Published
2020-01-13T19:15:00Z
Modified
2020-01-13T19:15:00Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
Summary
[none]
Details

PySAML2 before 5.0.0 does not check that the signature in a SAML document is enveloped and thus signature wrapping is effective, i.e., it is affected by XML Signature Wrapping (XSW). The signature information and the node/object that is signed can be in different places and thus the signature verification will succeed, but the wrong data will be used. This specifically affects the verification of assertion that have been signed.

References

Affected packages

Ubuntu:16.04:LTS / python-pysaml2

Package

Name
python-pysaml2
Purl
pkg:deb/ubuntu/python-pysaml2@3.0.0-3ubuntu1.16.04.4?arch=src?distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.0.0-3ubuntu1.16.04.4

Affected versions

2.*

2.4.0-0ubuntu2

3.*

3.0.0-3ubuntu1
3.0.0-3ubuntu1.16.04.1
3.0.0-3ubuntu1.16.04.3

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "python-pysaml2-doc": "3.0.0-3ubuntu1.16.04.4",
            "python3-pysaml2": "3.0.0-3ubuntu1.16.04.4",
            "python-pysaml2": "3.0.0-3ubuntu1.16.04.4"
        }
    ]
}

Ubuntu:18.04:LTS / python-pysaml2

Package

Name
python-pysaml2
Purl
pkg:deb/ubuntu/python-pysaml2@4.0.2-0ubuntu3.1?arch=src?distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.0.2-0ubuntu3.1

Affected versions

3.*

3.0.0-3ubuntu2

4.*

4.0.2-0ubuntu2
4.0.2-0ubuntu3

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "python-pysaml2-doc": "4.0.2-0ubuntu3.1",
            "python3-pysaml2": "4.0.2-0ubuntu3.1",
            "python-pysaml2": "4.0.2-0ubuntu3.1"
        }
    ]
}