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01 Record

CVE-2020-14422

Lib/ipaddress.py in Python through 3.8.3 improperly computes hash values in the IPv4Interface and IPv6Interface classes, which might allow a remote attacker to cause a denial of service if an

UnratedPUBLISHEDCNA: mitre
CNA base scoreUnratedNo CNA CVSS vector
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02 Description

Lib/ipaddress.py in Python through 3.8.3 improperly computes hash values in the IPv4Interface and IPv6Interface classes, which might allow a remote attacker to cause a denial of service if an

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
12.70% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 96.2% of scored records. A rank, not a probability.
NVD base score
5.9 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-10-14.
Red Hat severity
Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2020-06-18 00:00Z6 YR AGO
Last updated
2026-10-14 09:29Z15 DAYS AGO
Reserved
2020-06-18
Assigning CNA
mitre
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
  • CWE-330Use of Insufficiently Random ValuesClass
  • CWE-682Incorrect CalculationPillar
Data version
5.2
Document digest
017268a69a1eaef323b87e39c916f0afeb6a040d94d24d1d0cfee55bc61b3f2a

05 Affected products

VendorProductVersionsPlatforms
fedoraprojectfedoraNot specified—
opensuseleapNot specified—
oracleenterprise_manager_ops_centerNot specified—
pythonpythonNot specified—
redhatenterprise_linuxNot specified—
redhatquayNot specified—
redhatrhel_software_collectionsNot specified—

06 References

07 Fixed in

AlmaLinux 8

  • python38-Cython
    Fixed in 0.29.14-4.module_el8.6.0+2778+cd494b30
  • python38-asn1crypto
    Fixed in 1.2.0-3.module_el8.6.0+2778+cd494b30
  • python38-cffi
    Fixed in 1.13.2-3.module_el8.6.0+2778+cd494b30
  • python38-chardet
    Fixed in 3.0.4-19.module_el8.6.0+2778+cd494b30
  • python38-cryptography
    Fixed in 2.8-3.module_el8.6.0+2778+cd494b30
  • python38-idna
    Fixed in 2.8-6.module_el8.6.0+2778+cd494b30
  • python38-markupsafe
    Fixed in 1.1.1-6.module_el8.6.0+2778+cd494b30
  • python38-mod_wsgi
    Fixed in 4.6.8-3.module_el8.6.0+2778+cd494b30
  • python38-psycopg2
    Fixed in 2.8.4-4.module_el8.6.0+2778+cd494b30
  • python38-psycopg2-doc
    Fixed in 2.8.4-4.module_el8.6.0+2778+cd494b30
  • python38-psycopg2-tests
    Fixed in 2.8.4-4.module_el8.6.0+2778+cd494b30
  • python38-pycparser
    Fixed in 2.19-3.module_el8.6.0+2778+cd494b30
  • python38-pysocks
    Fixed in 1.7.1-4.module_el8.6.0+2778+cd494b30
  • python38-pytz
    Fixed in 2019.3-3.module_el8.6.0+2778+cd494b30
  • python38-requests
    Fixed in 2.22.0-9.module_el8.6.0+2778+cd494b30
  • python38-scipy
    Fixed in 1.3.1-4.module_el8.6.0+2778+cd494b30

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 8

  • python38-Cython
    Fixed in 0.29.14-4.module_el8.6.0+2778+cd494b30
  • python38-asn1crypto
    Fixed in 1.2.0-3.module_el8.6.0+2778+cd494b30
  • python38-cffi
    Fixed in 1.13.2-3.module_el8.6.0+2778+cd494b30
  • python38-chardet
    Fixed in 3.0.4-19.module_el8.6.0+2778+cd494b30
  • python38-cryptography
    Fixed in 2.8-3.module_el8.6.0+2778+cd494b30
  • python38-idna
    Fixed in 2.8-6.module_el8.6.0+2778+cd494b30
  • python38-markupsafe
    Fixed in 1.1.1-6.module_el8.6.0+2778+cd494b30
  • python38-mod_wsgi
    Fixed in 4.6.8-3.module_el8.6.0+2778+cd494b30
  • python38-psycopg2
    Fixed in 2.8.4-4.module_el8.6.0+2778+cd494b30
  • python38-psycopg2-doc
    Fixed in 2.8.4-4.module_el8.6.0+2778+cd494b30
  • python38-psycopg2-tests
    Fixed in 2.8.4-4.module_el8.6.0+2778+cd494b30
  • python38-pycparser
    Fixed in 2.19-3.module_el8.6.0+2778+cd494b30
  • python38-pysocks
    Fixed in 1.7.1-4.module_el8.6.0+2778+cd494b30
  • python38-pytz
    Fixed in 2019.3-3.module_el8.6.0+2778+cd494b30
  • python38-requests
    Fixed in 2.22.0-9.module_el8.6.0+2778+cd494b30
  • python38-scipy
    Fixed in 1.3.1-4.module_el8.6.0+2778+cd494b30

Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

Debian 11

  • python-ipaddress
    No fix yet

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 16.04 LTS

  • python3.5
    Fixed in 3.5.2-2ubuntu0~16.04.11

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 18.04 LTS

  • python3.6
    Fixed in 3.6.9-1~18.04ubuntu1.1

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 20.04 LTS

  • python3.8
    Fixed in 3.8.2-1ubuntu1.2

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 14.04 LTS

  • python3.4
    Fixed in 3.4.3-1ubuntu1~14.04.7+esm7
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • python3.5
    Fixed in 3.5.2-2ubuntu0~16.04.4~14.04.1+esm1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 18.04 LTS

  • python3.7
    Fixed in 3.7.5-2ubuntu1~18.04.2+esm3
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • python3.8
    Fixed in 3.8.0-3ubuntu1~18.04.2+esm2
    Available with Ubuntu Pro: https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.