USN-5812-1

It was discovered that urllib3 incorrectly handled certain characters in URLs. A remote attacker could possibly use this issue to cause urllib3 to consume resources, leading to a denial of service.

References

Affected packages

Ubuntu:20.04:LTS / python-urllib3

Package

Name: python-urllib3
Purl: pkg:deb/ubuntu/python-urllib3@1.25.8-2ubuntu0.2?arch=source&distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.25.8-2ubuntu0.2

Affected versions

1.*

1.24.1-1ubuntu1

1.24.1-1ubuntu2

1.25.8-1

1.25.8-2

1.25.8-2ubuntu0.1

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "1.25.8-2ubuntu0.2",
            "binary_name": "python3-urllib3"
        }
    ],
    "availability": "No subscription required"
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5812-1.json"

cves_map

{
    "cves": [
        {
            "id": "CVE-2021-33503",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "low"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:20.04:LTS"
}