PyPI: python
CVE-2023-6597
Safety vulnerability ID: SFTY-20240319-19386
Safety legacy ID: pyup.io-66949
An issue was found in the CPython `tempfile.TemporaryDirectory` class affecting versions 3.12.1, 3.11.7, 3.10.13, 3.9.18, and 3.8.18 and prior. The tempfile.TemporaryDirectory class would dereference symlinks during cleanup of permissions-related errors. This means users which can run privileged programs are potentially able to modify permissions of files referenced by symlinks in some circumstances.
Overview
An issue was found in the CPython `tempfile.TemporaryDirectory` class affecting versions 3.12.1, 3.11.7, 3.10.13, 3.9.18, and 3.8.18 and prior. The tempfile.TemporaryDirectory class would dereference symlinks during cleanup of permissions-related errors. This means users which can run privileged programs are potentially able to modify permissions of files referenced by symlinks in some circumstances.
Advisory
An issue was found in the CPython `tempfile.TemporaryDirectory` class affecting versions 3.12.1, 3.11.7, 3.10.13, 3.9.18, and 3.8.18 and prior. The tempfile.TemporaryDirectory class would dereference symlinks during cleanup of permissions-related errors. This means users which can run privileged programs are potentially able to modify permissions of files referenced by symlinks in some circumstances.
Affected Package
Also affects
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How to Fix
Mitigation and Workarounds
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Vulnerable Functions
Functions linked to known vulnerabilities.
References
- https://getsafety.com/vulnerabilities/SFTY-20240319-19386/CVE-2023-6597
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-6597
- https://github.com/python/cpython/commit/02a9259c717738dfe6b463c44d7e17f2b6d2cb3a
- https://github.com/python/cpython/commit/5585334d772b253a01a6730e8202ffb1607c3d25
- https://github.com/python/cpython/commit/6ceb8aeda504b079fef7a57b8d81472f15cdd9a5
- https://github.com/python/cpython/commit/81c16cd94ec38d61aa478b9a452436dc3b1b524d
- https://github.com/python/cpython/commit/8eaeefe49d179ca4908d052745e3bb8b6f238f82
- https://github.com/python/cpython/commit/d54e22a669ae6e987199bb5d2c69bb5a46b0083b
- https://github.com/python/cpython/issues/91133
- https://lists.debian.org/debian-lts-announce/2024/03/msg00025.html
- https://mail.python.org/archives/list/security-announce@python.org/thread/Q5C6ATFC67K53XFV4KE45325S7NS62LD/
Verified by Safety
Our Cybersecurity Intelligence Team reviewed this vulnerability. We combine public data with our own research to find issues not yet reported to public sources.
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