(1) core/tests/test_memmap.py, (2) core/tests/test_multiarray.py, (3) f2py/f2py2e.py, and (4) lib/tests/test_io.py in NumPy before 1.8.1 allow local users to write to arbitrary files via a symlink attack on a temporary file.

References

• https://nvd.nist.gov/vuln/detail/CVE-2014-1859
• numpy/numpy#4262
• numpy/numpy@0bb46c1
• https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=737778
• https://bugzilla.redhat.com/show_bug.cgi?id=1062009
• https://exchange.xforce.ibmcloud.com/vulnerabilities/91317
• https://github.com/numpy/numpy/blob/maintenance/1.8.x/doc/release/1.8.1-notes.rst
• http://lists.fedoraproject.org/pipermail/package-announce/2014-February/128358.html
• http://lists.fedoraproject.org/pipermail/package-announce/2014-February/128781.html
• http://www.openwall.com/lists/oss-security/2014/02/08/3
• GHSA-2fc2-6r4j-p65h
• https://github.com/pypa/advisory-database/tree/main/vulns/numpy/PYSEC-2018-34.yaml
• http://www.securityfocus.com/bid/65440