USN-5200-1

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Source

https://ubuntu.com/security/notices/USN-5200-1

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5200-1.json

JSON Data

https://api.osv.dev/v1/vulns/USN-5200-1

Related

Published

2021-12-17T14:59:29.220066Z

Modified

2021-12-17T14:59:29.220066Z

Summary

python3.7, python3.8 vulnerabilities

Details

It was discovered that the urllib.request.AbstractBasicAuthHandler class in Python contains regex allowing for catastrophic backtracking. Specially crafted traffic from a malicious HTTP server could cause a regular expression denial of service (ReDoS) condition for a client. (CVE-2020-8492)

It was discovered that the urllib.request.AbstractBasicAuthHandler class in Python contains regex with a quadratic worst-case time complexity. Specially crafted traffic from a malicious HTTP server could cause a regular expression denial of service (ReDoS) condition for a client. (CVE-2021-3733)

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. (CVE-2021-3737)

References

Affected packages

Ubuntu:18.04:LTS / python3.7

Package

Name: python3.7
Purl: pkg:deb/ubuntu/python3.7@3.7.5-2ubuntu1~18.04.2?arch=src?distro=bionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

3.7.5-2ubuntu1~18.04.2

Affected versions

3.*

3.7.0~a2-1

3.7.0~a3-1

3.7.0~a3-2

3.7.0~a3-3

3.7.0~a4-1

3.7.0~b1-1

3.7.0~b1-1build1

3.7.0~b2-1

3.7.0~b3-1

3.7.0-1~18.04

3.7.1-1~18.04

3.7.3-2~18.04.1

3.7.5-2~18.04

3.7.5-2~18.04.4

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "libpython3.7-dev": "3.7.5-2ubuntu1~18.04.2",
            "libpython3.7-testsuite": "3.7.5-2ubuntu1~18.04.2",
            "python3.7-venv": "3.7.5-2ubuntu1~18.04.2",
            "libpython3.7": "3.7.5-2ubuntu1~18.04.2",
            "idle-python3.7": "3.7.5-2ubuntu1~18.04.2",
            "python3.7-examples": "3.7.5-2ubuntu1~18.04.2",
            "python3.7-dbg": "3.7.5-2ubuntu1~18.04.2",
            "python3.7-dev": "3.7.5-2ubuntu1~18.04.2",
            "libpython3.7-minimal": "3.7.5-2ubuntu1~18.04.2",
            "python3.7-minimal": "3.7.5-2ubuntu1~18.04.2",
            "libpython3.7-dbg": "3.7.5-2ubuntu1~18.04.2",
            "python3.7": "3.7.5-2ubuntu1~18.04.2",
            "python3.7-doc": "3.7.5-2ubuntu1~18.04.2",
            "libpython3.7-stdlib": "3.7.5-2ubuntu1~18.04.2"
        }
    ]
}

Ubuntu:18.04:LTS / python3.8

Package

Name: python3.8
Purl: pkg:deb/ubuntu/python3.8@3.8.0-3ubuntu1~18.04.2?arch=src?distro=bionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

3.8.0-3ubuntu1~18.04.2

Affected versions

3.*

3.8.0-3~18.04

3.8.0-3~18.04.1

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "libpython3.8-stdlib": "3.8.0-3ubuntu1~18.04.2",
            "libpython3.8-testsuite": "3.8.0-3ubuntu1~18.04.2",
            "libpython3.8": "3.8.0-3ubuntu1~18.04.2",
            "libpython3.8-minimal": "3.8.0-3ubuntu1~18.04.2",
            "idle-python3.8": "3.8.0-3ubuntu1~18.04.2",
            "libpython3.8-dbg": "3.8.0-3ubuntu1~18.04.2",
            "python3.8": "3.8.0-3ubuntu1~18.04.2",
            "python3.8-venv": "3.8.0-3ubuntu1~18.04.2",
            "python3.8-dbg": "3.8.0-3ubuntu1~18.04.2",
            "python3.8-dev": "3.8.0-3ubuntu1~18.04.2",
            "python3.8-examples": "3.8.0-3ubuntu1~18.04.2",
            "python3.8-minimal": "3.8.0-3ubuntu1~18.04.2",
            "libpython3.8-dev": "3.8.0-3ubuntu1~18.04.2"
        }
    ]
}