Description
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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- http://www.openwall.com/lists/oss-security/2014/03/28/15 ↗
- http://lists.opensuse.org/opensuse-updates/2014-05/msg00008.html ↗
- https://security.gentoo.org/glsa/201503-10 ↗
- http://www.openwall.com/lists/oss-security/2014/03/30/4 ↗
- http://bugs.python.org/issue21082 ↗
- http://www.openwall.com/lists/oss-security/2014/03/29/5 ↗
- http://lists.opensuse.org/opensuse-updates/2014-05/msg00007.html ↗
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html ↗