USN-4754-3

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Source

https://ubuntu.com/security/notices/USN-4754-3

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4754-3.json

JSON Data

https://api.osv.dev/v1/vulns/USN-4754-3

Related

Published

2021-03-12T14:07:56.469671Z

Modified

2021-03-12T14:07:56.469671Z

Summary

python2.7, python3.7, python3.8 vulnerabilities

Details

USN-4754-1 fixed vulnerabilities in Python. This update provides the corresponding updates for Ubuntu 18.04 and Ubuntu 20.04.

In the case of Python 2.7 for 20.04, these additional fixes are included:

It was dicovered that Python allowed remote attackers to cause a denial of service (resource consumption) via a ZIP bomb. (CVE-2019-9674)

It was discovered that Python had potentially misleading information about whether sorting occurs. This fix updates the documentation about it. (CVE-2019-17514)

It was discovered that Python incorrectly handled certain TAR archives. An attacker could possibly use this issue to cause a denial of service. (CVE-2019-20907)

It was discovered that Python allowed an HTTP server to conduct Regular Expression Denial of Service (ReDoS) attacks against a client because of urllib.request.AbstractBasicAuthHandler catastrophic backtracking. (CVE-2020-8492)

It was discovered that Python allowed CRLF injection if the attacker controls the HTTP request method, as demonstrated by inserting CR and LF control characters in the first argument of HTTPConnection.request. (CVE-2020-26116)

Original advisory details:

It was discovered that Python incorrectly handled certain inputs. An attacker could possibly use this issue to execute arbitrary code or cause a denial of service. (CVE-2020-27619, CVE-2021-3177)

References

Affected packages

Ubuntu:18.04:LTS / python3.7

Package

Name: python3.7
Purl: pkg:deb/ubuntu/python3.7@3.7.5-2~18.04.4?arch=src?distro=bionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

3.7.5-2~18.04.4

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

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "libpython3.7-dev": "3.7.5-2~18.04.4",
            "libpython3.7-testsuite": "3.7.5-2~18.04.4",
            "python3.7-venv": "3.7.5-2~18.04.4",
            "libpython3.7": "3.7.5-2~18.04.4",
            "idle-python3.7": "3.7.5-2~18.04.4",
            "python3.7-examples": "3.7.5-2~18.04.4",
            "python3.7-dbg": "3.7.5-2~18.04.4",
            "python3.7-dev": "3.7.5-2~18.04.4",
            "libpython3.7-minimal": "3.7.5-2~18.04.4",
            "python3.7-minimal": "3.7.5-2~18.04.4",
            "libpython3.7-dbg": "3.7.5-2~18.04.4",
            "python3.7": "3.7.5-2~18.04.4",
            "python3.7-doc": "3.7.5-2~18.04.4",
            "libpython3.7-stdlib": "3.7.5-2~18.04.4"
        }
    ]
}

Ubuntu:18.04:LTS / python3.8

Package

Name: python3.8
Purl: pkg:deb/ubuntu/python3.8@3.8.0-3~18.04.1?arch=src?distro=bionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

3.8.0-3~18.04.1

Affected versions

3.*

3.8.0-3~18.04

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "libpython3.8-stdlib": "3.8.0-3~18.04.1",
            "libpython3.8-testsuite": "3.8.0-3~18.04.1",
            "libpython3.8": "3.8.0-3~18.04.1",
            "libpython3.8-minimal": "3.8.0-3~18.04.1",
            "idle-python3.8": "3.8.0-3~18.04.1",
            "libpython3.8-dbg": "3.8.0-3~18.04.1",
            "python3.8": "3.8.0-3~18.04.1",
            "python3.8-venv": "3.8.0-3~18.04.1",
            "python3.8-dbg": "3.8.0-3~18.04.1",
            "python3.8-dev": "3.8.0-3~18.04.1",
            "python3.8-examples": "3.8.0-3~18.04.1",
            "python3.8-minimal": "3.8.0-3~18.04.1",
            "libpython3.8-dev": "3.8.0-3~18.04.1"
        }
    ]
}

Ubuntu:20.04:LTS / python2.7

Package

Name: python2.7
Purl: pkg:deb/ubuntu/python2.7@2.7.18-1~20.04.1?arch=src?distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

2.7.18-1~20.04.1

Affected versions

2.*

2.7.17~rc1-1

2.7.17-1

2.7.17-1ubuntu5

2.7.17-1ubuntu6

2.7.18~rc1-2

2.7.18-1~20.04

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "python2.7": "2.7.18-1~20.04.1",
            "libpython2.7": "2.7.18-1~20.04.1",
            "libpython2.7-dbg": "2.7.18-1~20.04.1",
            "libpython2.7-stdlib": "2.7.18-1~20.04.1",
            "python2.7-dev": "2.7.18-1~20.04.1",
            "python2.7-examples": "2.7.18-1~20.04.1",
            "python2.7-doc": "2.7.18-1~20.04.1",
            "python2.7-dbg": "2.7.18-1~20.04.1",
            "idle-python2.7": "2.7.18-1~20.04.1",
            "libpython2.7-testsuite": "2.7.18-1~20.04.1",
            "python2.7-minimal": "2.7.18-1~20.04.1",
            "libpython2.7-dev": "2.7.18-1~20.04.1",
            "libpython2.7-minimal": "2.7.18-1~20.04.1"
        }
    ]
}