{"id":"CVE-2024-3219","summary":"Pure-Python fallback of socket.socketpair() doesn’t authenticate peer connection","details":"The\n “socket” module provides a pure-Python fallback to the \nsocket.socketpair() function for platforms that don’t support AF_UNIX, \nsuch as Windows. This pure-Python implementation uses AF_INET or \nAF_INET6 to create a local connected pair of sockets. The connection \nbetween the two sockets was not verified before passing the two sockets \nback to the user, which leaves the server socket vulnerable to a \nconnection race from a malicious local peer.\n\nPlatforms that support AF_UNIX such as Linux and macOS are not affected by this vulnerability. Versions prior to CPython 3.5 are not affected due to the vulnerable API not being included.","aliases":["PSF-2024-7"],"modified":"2026-05-18T05:58:51.175178662Z","published":"2024-07-29T21:54:05.830Z","database_specific":{"cna_assigner":"PSF","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/3xxx/CVE-2024-3219.json"},"references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2024/07/29/3"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/3xxx/CVE-2024-3219.json"},{"type":"ADVISORY","url":"https://mail.python.org/archives/list/security-announce@python.org/thread/WYKDQWIERRE2ICIYMSVRZJO33GSCWU2B/"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-3219"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20250502-0004/"},{"type":"REPORT","url":"https://github.com/python/cpython/issues/122133"},{"type":"FIX","url":"https://github.com/python/cpython/commit/06fa244666ec6335a3b9bf2367e31b42b9a89b20"},{"type":"FIX","url":"https://github.com/python/cpython/commit/0b65c8bf5367625673eafb92f85046a1b31259f2"},{"type":"FIX","url":"https://github.com/python/cpython/commit/220e31adeaaa8436c9ff234cba1398bc49e2bb6c"},{"type":"FIX","url":"https://github.com/python/cpython/commit/2621a8a40ba4b2c68ca564671b7daa5da80a4508"},{"type":"FIX","url":"https://github.com/python/cpython/commit/31302f5fc24eecd693f0c8aaba7c2840b09b594d"},{"type":"FIX","url":"https://github.com/python/cpython/commit/3f5d9d12c74787fbf3f5891835c85cc15526c86d"},{"type":"FIX","url":"https://github.com/python/cpython/commit/5df322e91a40909e6904bbdbc0c3a6b6a9eead39"},{"type":"FIX","url":"https://github.com/python/cpython/commit/5f90abaa786f994db3907fc31e2ee00ea2cf0929"},{"type":"FIX","url":"https://github.com/python/cpython/commit/78df1043dbdce5c989600616f9f87b4ee72944e5"},{"type":"FIX","url":"https://github.com/python/cpython/commit/b252317956b7fc035bb3774ef6a177e227f9fc54"},{"type":"FIX","url":"https://github.com/python/cpython/commit/c21a36112a0028d7ac3cf8f480e0dc88dba5922c"},{"type":"FIX","url":"https://github.com/python/cpython/commit/c5655aa6ad120d2ed7f255bebd6e8b71a9c07dde"},{"type":"FIX","url":"https://github.com/python/cpython/commit/e319f774f9e766a2b92949444a2d46081df3363a"},{"type":"FIX","url":"https://github.com/python/cpython/commit/f071f01b7b7e19d7d6b3a4b0ec62f820ecb14660"},{"type":"FIX","url":"https://github.com/python/cpython/pull/122134"},{"type":"PACKAGE","url":"https://github.com/python/cpython"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/python/cpython","events":[{"introduced":"2268289a47c6e3c9a220b53697f9480ec390466f"},{"fixed":"e4a3e786a5eb54edde84698909ed6ade4704c3ba"}]}],"versions":["v3.13.0b4","v3.13.0b3","v3.13.0b2","v3.13.0b1"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-3219.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"}]}