CVE & CISA-KEV Catalog

CVE-2020-14422

MEDIUMEPSS 96th pctl
5.9
CVSS v3
NVD

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 application is affected by the performance of a dictionary containing IPv4Interface or IPv6Interface objects, and this attacker can cause many dictionary entries to be created. This is fixed in: v3.5.10, v3.5.10rc1; v3.6.12; v3.7.9; v3.8.4, v3.8.4rc1, v3.8.5, v3.8.6, v3.8.6rc1; v3.9.0, v3.9.0b4, v3.9.0b5, v3.9.0rc1, v3.9.0rc2.

How to fix

Remediation Available
python2.7Ubuntu
Fixed in:2.7.6-8ubuntu0.6+esm6USN-4428-1
Fixed in:2.7.12-1ubuntu0~16.04.12USN-4428-1
Fixed in:2.7.17-1~18.04ubuntu1.1USN-4428-1
python2.7-minimalUbuntu
Fixed in:2.7.6-8ubuntu0.6+esm6USN-4428-1
Fixed in:2.7.12-1ubuntu0~16.04.12USN-4428-1
Fixed in:2.7.17-1~18.04ubuntu1.1USN-4428-1
python3.10Ubuntu
Fixed in:3.10.12-1~22.04.4USN-6891-1
python3.10-minimalUbuntu
Fixed in:3.10.12-1~22.04.4USN-6891-1
python3.11Ubuntu
Fixed in:3.11.0~rc1-1~22.04.1~esm1USN-6891-1
Fixed in:3.11.6-3ubuntu0.1USN-6891-1
python3.11-minimalUbuntu
Fixed in:3.11.0~rc1-1~22.04.1~esm1USN-6891-1
Fixed in:3.11.6-3ubuntu0.1USN-6891-1
python3.12Ubuntu
Fixed in:3.12.0-1ubuntu0.1USN-6891-1
python3.12-minimalUbuntu
Fixed in:3.12.0-1ubuntu0.1USN-6891-1
python3.4Ubuntu
Fixed in:3.4.3-1ubuntu1~14.04.7+esm7USN-4428-1
python3.4-minimalUbuntu
Fixed in:3.4.3-1ubuntu1~14.04.7+esm7USN-4428-1
python3.5Ubuntu
Fixed in:3.5.2-2ubuntu0~16.04.4~14.04.1+esm1USN-6891-1
Fixed in:3.5.2-2ubuntu0~16.04.13+esm13USN-6891-1
Fixed in:3.5.2-2ubuntu0~16.04.11USN-4428-1
python3.5-minimalUbuntu
Fixed in:3.5.2-2ubuntu0~16.04.4~14.04.1+esm1USN-6891-1
Fixed in:3.5.2-2ubuntu0~16.04.13+esm13USN-6891-1
Fixed in:3.5.2-2ubuntu0~16.04.11USN-4428-1
python3.6Ubuntu
Fixed in:3.6.9-1~18.04ubuntu1.1USN-4428-1
Fixed in:3.6.9-1~18.04ubuntu1.13+esm2USN-6891-1
python3.6-minimalUbuntu
Fixed in:3.6.9-1~18.04ubuntu1.1USN-4428-1
Fixed in:3.6.9-1~18.04ubuntu1.13+esm2USN-6891-1
python3.7Ubuntu
Fixed in:3.7.5-2ubuntu1~18.04.2+esm3USN-6891-1
python3.7-minimalUbuntu
Fixed in:3.7.5-2ubuntu1~18.04.2+esm3USN-6891-1
python3.8Ubuntu
Fixed in:3.8.0-3ubuntu1~18.04.2+esm2USN-6891-1
Fixed in:3.8.2-1ubuntu1.2USN-4428-1
Fixed in:3.8.10-0ubuntu1~20.04.10USN-6891-1
python3.8-minimalUbuntu
Fixed in:3.8.0-3ubuntu1~18.04.2+esm2USN-6891-1
Fixed in:3.8.10-0ubuntu1~20.04.10USN-6891-1
Fixed in:3.8.2-1ubuntu1.2USN-4428-1
python3.9Ubuntu
Fixed in:3.9.5-3ubuntu0~20.04.1+esm2USN-6891-1
python3.9-minimalUbuntu
Fixed in:3.9.5-3ubuntu0~20.04.1+esm2USN-6891-1
Python 2Windows application
Affected:3.8.0 3.8.4Fixed in:3.8.4Python Software Foundation
Affected:3.0.0 3.5.10Fixed in:3.5.10Python Software Foundation
Affected:3.6.0 3.6.12Fixed in:3.6.12Python Software Foundation
Affected:3.7.0 3.7.9Fixed in:3.7.9Python Software Foundation
Python 3.10Windows application
Affected:3.6.0 3.6.12Fixed in:3.6.12Python Software Foundation
Affected:3.7.0 3.7.9Fixed in:3.7.9Python Software Foundation
Affected:3.8.0 3.8.4Fixed in:3.8.4Python Software Foundation
Affected:3.0.0 3.5.10Fixed in:3.5.10Python Software Foundation
Python 3.11Windows application
Affected:3.8.0 3.8.4Fixed in:3.8.4Python Software Foundation
Affected:3.6.0 3.6.12Fixed in:3.6.12Python Software Foundation
Affected:3.7.0 3.7.9Fixed in:3.7.9Python Software Foundation
Affected:3.0.0 3.5.10Fixed in:3.5.10Python Software Foundation
Python 3.12Windows application
Affected:3.0.0 3.5.10Fixed in:3.5.10Python Software Foundation
Affected:3.8.0 3.8.4Fixed in:3.8.4Python Software Foundation
Affected:3.7.0 3.7.9Fixed in:3.7.9Python Software Foundation
Affected:3.6.0 3.6.12Fixed in:3.6.12Python Software Foundation
Python 3.8Windows application
Affected:3.8.0 3.8.4Fixed in:3.8.4Python Software Foundation
Affected:3.7.0 3.7.9Fixed in:3.7.9Python Software Foundation
Affected:3.6.0 3.6.12Fixed in:3.6.12Python Software Foundation
Affected:3.0.0 3.5.10Fixed in:3.5.10Python Software Foundation
Python 3.9Windows application
Affected:3.8.0 3.8.4Fixed in:3.8.4Python Software Foundation
Affected:3.0.0 3.5.10Fixed in:3.5.10Python Software Foundation
Affected:3.6.0 3.6.12Fixed in:3.6.12Python Software Foundation
Affected:3.7.0 3.7.9Fixed in:3.7.9Python Software Foundation

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Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityHigh
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityNone
IntegrityNone
AvailabilityHigh

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

12.39%probability of exploitation in 30 days
96thpercentile

Very high risk: more likely to be exploited than 96% of all known CVEs.

References

Related Vulnerabilities

Other CWE-330 vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2019-5420Critical9.892%-Fix
CVE-2021-34646Critical9.851%--
CVE-2008-0087High7.532%--
CVE-2017-6026Critical9.132%--
CVE-2018-17888Critical9.830%--
CVE-2020-11901Critical9.021%-Fix
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.