USN-5066-1

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Source
https://ubuntu.com/security/notices/USN-5066-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5066-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-5066-1
Upstream
Related
Published
2021-09-08T11:28:31Z
Modified
2026-02-10T04:42:18Z
Summary
python-pysaml2 vulnerability
Details

Brian Wolff discovered that PySAML2 incorrectly validated cryptographic signatures. A remote attacker could possibly use this issue to alter SAML documents.

References

Affected packages

Ubuntu:18.04:LTS / python-pysaml2

Package

Name
python-pysaml2
Purl
pkg:deb/ubuntu/python-pysaml2@4.0.2-0ubuntu3.2?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
4.0.2-0ubuntu3.2

Affected versions

3.*
3.0.0-3ubuntu2
4.*
4.0.2-0ubuntu2
4.0.2-0ubuntu3
4.0.2-0ubuntu3.1

Ecosystem specific 

{
    "availability":  "No subscription required",
    "binaries":  [
        {
            "binary_name":  "python-pysaml2",
            "binary_version":  "4.0.2-0ubuntu3.2"
        },
        {
            "binary_name":  "python3-pysaml2",
            "binary_version":  "4.0.2-0ubuntu3.2"
        }
    ]
}

Database specific

cves_map 
{
    "cves":  [
        {
            "id":  "CVE-2021-21239",
            "severity":  [
                {
                    "score":  "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "medium",
                    "type":  "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem":  "Ubuntu:18.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5066-1.json"

Ubuntu:20.04:LTS / python-pysaml2

Package

Name
python-pysaml2
Purl
pkg:deb/ubuntu/python-pysaml2@4.9.0-0ubuntu3.1?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
4.9.0-0ubuntu3.1

Affected versions

4.*
4.5.0+dfsg1-0ubuntu2
4.9.0-0ubuntu1
4.9.0-0ubuntu2
4.9.0-0ubuntu3

Ecosystem specific 

{
    "availability":  "No subscription required",
    "binaries":  [
        {
            "binary_name":  "python3-pysaml2",
            "binary_version":  "4.9.0-0ubuntu3.1"
        }
    ]
}

Database specific

cves_map 
{
    "cves":  [
        {
            "id":  "CVE-2021-21239",
            "severity":  [
                {
                    "score":  "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "medium",
                    "type":  "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem":  "Ubuntu:20.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5066-1.json"