Vulnerability in Python
CVE-2014-2667
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.
Vulnerability class: Race Condition
Published · last modified .
CVSS v2 metric
CVSS v2 base score 3.3 (Low). Vector: AV:L/AC:M/Au:N/C:P/I:P/A:N. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.004 (27.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 27th percentile — 27.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Python — versions 3.2.0, 3.2.1, 3.2.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.openwall.com/lists/oss-security/2014/03/28/15 (mailing-list)
- lists.opensuse.org/opensuse-updates/2014-05/msg00008.html (vendor-advisory)
- security.gentoo.org/glsa/201503-10 (vendor-advisory)
- www.openwall.com/lists/oss-security/2014/03/30/4 (mailing-list)
- bugs.python.org/issue21082 (Vendor Advisory)
- www.openwall.com/lists/oss-security/2014/03/29/5 (mailing-list)
- lists.opensuse.org/opensuse-updates/2014-05/msg00007.html (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html (vendor-advisory)
Frequently asked questions
- What is CVE-2014-2667?
- CVE-2014-2667 is a vulnerability in Python, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). Published 2014-11-16.
- Is CVE-2014-2667 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.