{"id":"PSF-2020-3","summary":"[CVE-2020-14422] Hash collisions in IPv4Interface and IPv6Interface","details":"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.","aliases":["BIT-libpython-2020-14422","BIT-python-2020-14422","BIT-python-min-2020-14422","CVE-2020-14422"],"modified":"2026-05-18T05:46:40.309291470Z","published":"2020-06-18T00:00:00Z","database_specific":{"cwe_ids":[]},"references":[{"type":"REPORT","url":"https://bugs.python.org/issue41004"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/python/cpython","events":[{"introduced":"0"},{"fixed":"11d258ceafdf60ab3840f9a5700f2d0ad3e2e2d1"},{"fixed":"9a646aa82dfa62d70ca2a99ada901ee6cf9f82bd"},{"fixed":"b30ee26e366bf509b7538d79bfec6c6d38d53f28"},{"fixed":"b98e7790c77a4378ec4b1c71b84138cb930b69b7"},{"fixed":"cfc7ff8d05f7a949a88b8a8dd506fb5c1c30d3e9"},{"fixed":"dc8ce8ead182de46584cc1ed8a8c51d48240cbd5"}]}],"versions":["v3.7.8","v3.6.11","v3.6.11rc1","v3.7.8rc1","v3.9.0b3","v3.9.0b1","v3.8.3","v3.8.3rc1","v3.7.7rc1","v3.9.0a2","v3.6.10","v3.6.10rc1","v3.7.6rc1","v3.5.9","v3.5.8","v3.5.8rc2","v3.5.8rc1","v3.8.0rc1","v3.6.9","v3.6.9rc1","v3.7.3rc1","v3.5.7","v3.5.7rc1","v3.6.8","v3.7.2rc1","v3.6.8rc1","v3.5.6","v3.5.6rc1","v3.7.0rc1","v3.6.6rc1","v3.7.0b5","v3.7.0b4","v3.7.0b3","v3.7.0b2","v3.5.5","v3.5.5rc1","v3.7.0b1","v3.7.0a2","v3.5.4","v3.5.4rc1","v3.6.2rc1","v3.5.3","v3.5.3rc1","v3.6.0rc1","v3.6.0b4","v3.6.0b3","v3.6.0b1","v3.6.0a3","v3.5.2","v3.5.2rc1","v3.5.1rc1","v3.5.0rc3","v3.5.0rc2","v3.5.0rc1","v3.5.0b4","v3.5.0b3","v3.5.0b1","v3.5.0a4","v3.5.0a3","v3.5.0a2","v3.5.0a1","v3.4.0b3","v3.4.0b2","v3.4.0b1","v3.4.0a4","v3.4.0a3","v3.4.0a2","v3.4.0a1","v3.3.0rc3","v3.3.0rc2","v3.3.0rc1","v3.3.0b2","v3.3.0b1","v3.3.0a4","v3.3.0a3","v3.3.0a2","v3.2rc3","v3.2rc2","v3.2rc1","v3.2b2","v3.2b1","v3.2a4","v3.2a3","v3.2a2","v3.2a1","v3.1","v3.1rc2","v3.1rc1","v3.1b1","v3.1a2","v3.1a1","v3.0rc3","v3.0rc2","v3.0rc1","v3.0b3","v3.0b2","v3.0b1","v3.0a5","v3.0a4","v3.0a3","v3.0a2","v3.0a1","v2.4","v2.4c1","v2.4b2","v2.4b1","v2.4a3","v2.4a2","v2.4a1","v2.3c2","v2.3c1","v2.2a3","v2.1","v2.1c2","v2.1c1","v2.1b2","v2.1b1","v2.1a2","v2.1a1","v2.0","v2.0c1","v2.0b2","v2.0b1","v1.6a2","v1.6a1","v1.5.2","v1.5.2c1","v1.5.2b2","v1.5.2b1","v1.5.2a2","v1.5.2a1","v1.5.1","v1.5","v1.5b2","v1.5b1","v1.5a4","v1.5a3","v1.5a2","v1.5a1","v1.4","v1.4b3","v1.4b2","v1.4b1","v1.3","v1.3b1","v1.2","v1.2b4","v1.2b3","v1.2b2","v1.2b1","v1.1.1","v1.1","v1.0.2","v1.0.1","v0.9.9","v0.9.8"],"database_specific":{"source":"https://github.com/psf/advisory-database/blob/main/advisories/python/PSF-2020-3.json"}}],"schema_version":"1.7.5"}