CVE-2023-6597: Security fixes in Python 3.10.14, 3.9.19, and 3.8.19 (CVE-2023-6597 & CVE-2024-0450)
First published: Tue Mar 19 2024(Updated: )
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.
Credit: cna@python.org cna@python.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/pypy3 | <=7.3.5+dfsg-2+deb11u2 | 7.3.5+dfsg-2+deb11u4 7.3.11+dfsg-2+deb12u3 7.3.19+dfsg-2 |
| debian/python2.7 | 2.7.18-8+deb11u1 | |
| debian/python3.11 | 3.11.2-6+deb12u5 3.11.2-6+deb12u3 | |
| debian/python3.12 | 3.12.10-1 | |
| debian/python3.9 | <=3.9.2-1 | 3.9.2-1+deb11u3 |
Remedy
allenpthuang> https://bugs.python.org/issue26660
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Reference Links
- http://www.openwall.com/lists/oss-security/2024/03/20/5
- 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://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/T3IGRX54M7RNCQOXVQO5KQKTGWCOABIM/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/U5VHWS52HGD743C47UMCSAK2A773M2YE/
- https://mail.python.org/archives/list/security-announce@python.org/thread/Q5C6ATFC67K53XFV4KE45325S7NS62LD/
- https://launchpad.net/bugs/cve/CVE-2023-6597
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-6597
- https://nvd.nist.gov/vuln/detail/CVE-2023-6597
- https://security-tracker.debian.org/tracker/CVE-2023-6597
- https://ubuntu.com/security/CVE-2023-6597
- https://github.com/python/cpython/pull/99930
- https://github.com/python/cpython/commit/e9b51c0ad81da1da11ae65840ac8b50a8521373c
- https://access.redhat.com/errata/RHSA-2024:3347
- https://access.redhat.com/errata/RHSA-2024:3391
- https://access.redhat.com/errata/RHSA-2024:3466
- https://access.redhat.com/errata/RHSA-2024:4058
- https://access.redhat.com/errata/RHSA-2024:4077
- https://access.redhat.com/errata/RHSA-2024:4078
- https://access.redhat.com/errata/RHSA-2024:4166
- https://access.redhat.com/errata/RHSA-2024:4370
- https://access.redhat.com/errata/RHSA-2024:4406
- https://access.redhat.com/errata/RHSA-2024:4456
- https://access.redhat.com/errata/RHSA-2024:4865
- https://access.redhat.com/errata/RHSA-2024:4871
- https://access.redhat.com/errata/RHSA-2024:4896
- https://access.redhat.com/errata/RHSA-2024:5535
- https://access.redhat.com/errata/RHSA-2024:5689
- https://access.redhat.com/errata/RHSA-2025:0364
- https://access.redhat.com/errata/RHSA-2025:0650
- https://access.redhat.com/errata/RHSA-2025:0646
- https://access.redhat.com/errata/RHSA-2025:0832
- https://access.redhat.com/errata/RHSA-2025:1120
- https://access.redhat.com/errata/RHSA-2025:1116
- https://access.redhat.com/errata/RHSA-2025:2705
- https://bugzilla.redhat.com/show_bug.cgi?id=2276518
Frequently Asked Questions
What is the severity of CVE-2023-6597?
CVE-2023-6597 has a medium severity rating due to its impact on users who can create symbolic links.
How do I fix CVE-2023-6597?
To fix CVE-2023-6597, upgrade to the latest version of the affected Python packages, such as python3.12 version 3.12.8-5 or higher.
Which versions of Python are affected by CVE-2023-6597?
CVE-2023-6597 affects Python versions 3.12.1, 3.11.7, 3.10.13, 3.9.18, and 3.8.18 and prior.
What is the main issue with CVE-2023-6597?
The main issue with CVE-2023-6597 is that the tempfile.TemporaryDirectory class dereferences symlinks during cleanup of permissions-related errors.
Who is impacted by CVE-2023-6597?
In CVE-2023-6597, users who can create symbolic links are impacted due to potential security risks during temporary directory cleanup.
- agent/type
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