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.
References
Link Providers
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00003.html cve-icon cve-icon
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00006.html cve-icon cve-icon
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00032.html cve-icon cve-icon
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00041.html cve-icon cve-icon
https://bugs.python.org/issue41004 cve-icon cve-icon
https://cert-portal.siemens.com/productcert/html/ssa-398330.html cve-icon
https://github.com/python/cpython/pull/20956 cve-icon cve-icon
https://lists.debian.org/debian-lts-announce/2020/07/msg00011.html cve-icon cve-icon
https://lists.debian.org/debian-lts-announce/2023/05/msg00016.html cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/36XI3EEQNMHGOZEI63Y7UV6XZRELYEAU/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CNHPQGSP2YM3JAUD2VAMPXTIUQTZ2M2U/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CTUNTBJ3POHONQOTLEZC46POCIYYTAKZ/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FCCZTAYZATTNSNEAXWA7U3HCO2OVQKT5/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LE4O3PNDNNOMSKHNUKZKD3NGHIFUFDPX/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NTBKKOLFFNHG6CM4ACDX4APHSD5ZX5N4/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OXI72HIHMXCQFWTULUXDG7VDA2BCYL4Y/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V3TALOUBYU2MQD4BPLRTDQUMBKGCAXUA/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V53P2YOLEQH4J7S5QHXMKMZYFTVVMTMO/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VT4AF72TJ2XNIKCR4WEBR7URBJJ4YZRD/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X36Y523UAZY5QFXZAAORNFY63HLBWX7N/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YILCHHTNLH4GG4GSQBX2MZRKZBXOLCKE/ cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2020-14422 cve-icon
https://security.gentoo.org/glsa/202008-01 cve-icon cve-icon
https://security.netapp.com/advisory/ntap-20200724-0004/ cve-icon cve-icon
https://usn.ubuntu.com/4428-1/ cve-icon cve-icon
https://www.cve.org/CVERecord?id=CVE-2020-14422 cve-icon
https://www.oracle.com/security-alerts/cpujan2021.html cve-icon cve-icon
History

Wed, 14 Oct 2026 10:30:00 +0000

Type Values Removed Values Added
References

Thu, 08 Oct 2026 22:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2020-06-18T00:00:00.000Z

Updated: 2026-10-14T09:29:19.735Z

Reserved: 2020-06-18T00:00:00.000Z

Link: CVE-2020-14422

cve-icon Vulnrichment

Updated: 2024-08-04T12:46:34.369Z

cve-icon NVD

Status : Modified

Published: 2020-06-18T14:15:11.047

Modified: 2026-10-14T10:17:29.803

Link: CVE-2020-14422

cve-icon Redhat

Severity : Moderate

Publid Date: 2020-06-18T00:00:00Z

Links: CVE-2020-14422 - Bugzilla