{"id":"PSF-2014-5","summary":"os.makedirs() not thread-safe","details":"Race condition in the _get_masked_mode function in Lib/os.py in Python 3.2 through 3.5, when exist_ok is set to true and multiple threads are used, might allow local users to bypass intended file permissions by leveraging a separate application vulnerability before the umask has been set to the expected value.","aliases":["CVE-2014-2667"],"modified":"2025-10-09T00:59:04.689358Z","published":"2014-11-16T01:00:00Z","database_specific":{"cwe_ids":[]},"references":[{"type":"REPORT","url":"https://bugs.python.org/issue21082"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/python/cpython","events":[{"introduced":"0"},{"fixed":"ee5f1c13d1ea21c628068fdf142823177f5526c2"}]}],"versions":["2.5","v0.9.8","v0.9.9","v1.0.1","v1.0.2","v1.1","v1.1.1","v1.2","v1.2b1","v1.2b2","v1.2b3","v1.2b4","v1.3","v1.3b1","v1.4","v1.4b1","v1.4b2","v1.4b3","v1.5","v1.5.1","v1.5.2","v1.5.2a1","v1.5.2a2","v1.5.2b1","v1.5.2b2","v1.5.2c1","v1.5a1","v1.5a2","v1.5a3","v1.5a4","v1.5b1","v1.5b2","v1.6a1","v1.6a2","v2.0","v2.0b1","v2.0b2","v2.0c1","v2.1","v2.1a1","v2.1a2","v2.1b1","v2.1b2","v2.1c1","v2.1c2","v2.2a3","v2.3c1","v2.3c2","v2.4","v2.4a1","v2.4a2","v2.4a3","v2.4b1","v2.4b2","v2.4c1","v2.5","v2.5.1","v2.5.1c1","v2.5.2","v2.5.2c1","v2.5.3","v2.5.3c1","v2.5.4","v2.5.5","v2.5.5c1","v2.5.5c2","v2.5.6","v2.5.6c1","v2.5a0","v2.5a1","v2.5a2","v2.5b1","v2.5b2","v2.5b3","v2.5c1","v2.5c2","v2.6","v2.6.1","v2.6.2","v2.6.2c1","v2.6.3","v2.6.3rc1","v2.6.4","v2.6.4rc1","v2.6.4rc2","v2.6.5","v2.6.5rc1","v2.6.5rc2","v2.6.6","v2.6.6rc1","v2.6.6rc2","v2.6.7","v2.6.8","v2.6.8rc1","v2.6.8rc2","v2.6a1","v2.6a2","v2.6a3","v2.6b1","v2.6b2","v2.6b3","v2.6rc1","v2.6rc2","v2.7","v2.7.1","v2.7.1rc1","v2.7.2","v2.7.2rc1","v2.7.3","v2.7.3rc1","v2.7.3rc2","v2.7a1","v2.7a2","v2.7a3","v2.7a4","v2.7b1","v2.7b2","v2.7rc1","v2.7rc2","v3.0a1","v3.0a2","v3.0a3","v3.0a4","v3.0a5","v3.0b1","v3.0b2","v3.0b3","v3.0rc1","v3.0rc2","v3.0rc3","v3.1","v3.1.1","v3.1.1rc1","v3.1.2","v3.1.2rc1","v3.1.3","v3.1.3rc1","v3.1.4","v3.1.4rc1","v3.1.5","v3.1.5rc1","v3.1.5rc2","v3.1a1","v3.1a2","v3.1b1","v3.1rc1","v3.1rc2","v3.2","v3.2.1","v3.2.1b1","v3.2.1rc1","v3.2.1rc2","v3.2.2","v3.2.2rc1","v3.2.3","v3.2.3rc1","v3.2.3rc2","v3.2.4","v3.2.4rc1","v3.2.5","v3.2a1","v3.2a2","v3.2a3","v3.2a4","v3.2b1","v3.2b2","v3.2rc1","v3.2rc2","v3.2rc3"],"database_specific":{"source":"https://github.com/psf/advisory-database/blob/main/advisories/python/PSF-2014-5.json"}}],"schema_version":"1.7.3"}