{"id":"CVE-2020-14422","state":"PUBLISHED","title":"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 se","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.","publishedAt":"2020-06-18T00:00:00.000Z","updatedAt":"2026-10-14T09:29:19.735Z","severity":null,"assigner":"mitre","products":["n/a n/a"],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":["https://bugs.python.org/issue41004","https://github.com/python/cpython/pull/20956","http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00003.html","http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00006.html","https://lists.debian.org/debian-lts-announce/2020/07/msg00011.html","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X36Y523UAZY5QFXZAAORNFY63HLBWX7N/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FCCZTAYZATTNSNEAXWA7U3HCO2OVQKT5/","http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00032.html","http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00041.html","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VT4AF72TJ2XNIKCR4WEBR7URBJJ4YZRD/","https://usn.ubuntu.com/4428-1/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V3TALOUBYU2MQD4BPLRTDQUMBKGCAXUA/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LE4O3PNDNNOMSKHNUKZKD3NGHIFUFDPX/","https://security.gentoo.org/glsa/202008-01","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YILCHHTNLH4GG4GSQBX2MZRKZBXOLCKE/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NTBKKOLFFNHG6CM4ACDX4APHSD5ZX5N4/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CNHPQGSP2YM3JAUD2VAMPXTIUQTZ2M2U/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V53P2YOLEQH4J7S5QHXMKMZYFTVVMTMO/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CTUNTBJ3POHONQOTLEZC46POCIYYTAKZ/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/36XI3EEQNMHGOZEI63Y7UV6XZRELYEAU/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OXI72HIHMXCQFWTULUXDG7VDA2BCYL4Y/","https://www.oracle.com/security-alerts/cpujan2021.html","https://security.netapp.com/advisory/ntap-20200724-0004/","https://lists.debian.org/debian-lts-announce/2023/05/msg00016.html","https://cert-portal.siemens.com/productcert/html/ssa-398330.html"],"weaknesses":[],"ingestedAt":"2026-10-29T19:46:33.607Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2020/14xxx/CVE-2020-14422.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2020-14422","state":"PUBLISHED","datePublished":"2020-06-18T00:00:00.000Z","dateUpdated":"2026-10-14T09:29:19.735Z","assignerShortName":"mitre","assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateReserved":"2020-06-18T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":[{"url":"https://bugs.python.org/issue41004"},{"url":"https://github.com/python/cpython/pull/20956"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00003.html","name":"openSUSE-SU-2020:0931","tags":["vendor-advisory"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00006.html","name":"openSUSE-SU-2020:0940","tags":["vendor-advisory"]},{"url":"https://lists.debian.org/debian-lts-announce/2020/07/msg00011.html","name":"[debian-lts-announce] 20200715 [SECURITY] [DLA 2280-1] python3.5 security 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