USN-5201-1

Source
https://ubuntu.com/security/notices/USN-5201-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/USN-5201-1.json
Related
Published
2021-12-17T15:10:44.332712Z
Modified
2021-12-17T15:10:44.332712Z
Details

It was discovered that the Python urllib http client could enter into an infinite loop when incorrectly handling certain server responses (100 Continue response). Specially crafted traffic from a malicious HTTP server could cause a denial of service (Dos) condition for a client.

References

Affected packages

Ubuntu:20.04:LTS / python3.9

Package

Name
python3.9

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0The exact introduced commit is unknown
Fixed
3.9.5-3ubuntu0~20.04.1

Ecosystem specific 

{
    "availability": "No subscription needed",
    "binaries": [
        {
            "python3.9-examples": "3.9.5-3ubuntu0~20.04.1",
            "python3.9-minimal": "3.9.5-3ubuntu0~20.04.1",
            "libpython3.9": "3.9.5-3ubuntu0~20.04.1",
            "python3.9-venv": "3.9.5-3ubuntu0~20.04.1",
            "libpython3.9-stdlib": "3.9.5-3ubuntu0~20.04.1",
            "idle-python3.9": "3.9.5-3ubuntu0~20.04.1",
            "python3.9-doc": "3.9.5-3ubuntu0~20.04.1",
            "python3.9": "3.9.5-3ubuntu0~20.04.1",
            "libpython3.9-testsuite": "3.9.5-3ubuntu0~20.04.1",
            "libpython3.9-dev": "3.9.5-3ubuntu0~20.04.1",
            "libpython3.9-minimal": "3.9.5-3ubuntu0~20.04.1",
            "python3.9-full": "3.9.5-3ubuntu0~20.04.1",
            "python3.9-dev": "3.9.5-3ubuntu0~20.04.1"
        }
    ]
}