Medium severity · published Mar 7, 2018
CVE-2018-1000117
Python Software Foundation CPython version From 3.2 until 3.6.4 on Windows contains a Buffer Overflow vulnerability in os.symlink() function on Windows that can result in…
6.7
CVSS
1%
EPSS
No
On KEV
Description
Python Software Foundation CPython version From 3.2 until 3.6.4 on Windows contains a Buffer Overflow vulnerability in os.symlink() function on Windows that can result in Arbitrary code execution, likely escalation of privilege. This attack appears to be exploitable via a python script that creates a symlink with an attacker controlled name or location. This vulnerability appears to have been fixed in 3.7.0 and 3.6.5.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 64% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PY
Python · Python
3.2.0 before 3.4.9; 3.5.0 before 3.5.6; 3.6.0 before 3.6.5; 3.7.0; 3.7.0; 3.7.0; +2 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-1000117
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-1000117
Issue Tracking
https://bugs.python.org/issue33001
Issue Tracking
https://github.com/python/cpython/pull/5989
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