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 Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Red Hat Enterprise Linux 8 | RedHat | python3-0:3.6.8-62.el8_10 | * |
| Red Hat Enterprise Linux 8 | RedHat | python39:3.9-8100020240516111311.d47b87a4 | * |
| Red Hat Enterprise Linux 8 | RedHat | python39-devel:3.9-8100020240516111311.d47b87a4 | * |
| Red Hat Enterprise Linux 8 | RedHat | python3.11-0:3.11.9-1.el8_10 | * |
| Red Hat Enterprise Linux 8 | RedHat | python3-0:3.6.8-62.el8_10 | * |
| Red Hat Enterprise Linux 8.2 Advanced Update Support | RedHat | python3-0:3.6.8-24.el8_2.3 | * |
| Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | RedHat | python3-0:3.6.8-39.el8_4.5 | * |
| Red Hat Enterprise Linux 8.4 Telecommunications Update Service | RedHat | python3-0:3.6.8-39.el8_4.5 | * |
| Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions | RedHat | python3-0:3.6.8-39.el8_4.5 | * |
| Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | RedHat | python3-0:3.6.8-47.el8_6.6 | * |
| Red Hat Enterprise Linux 8.6 Telecommunications Update Service | RedHat | python3-0:3.6.8-47.el8_6.6 | * |
| Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions | RedHat | python3-0:3.6.8-47.el8_6.6 | * |
| Red Hat Enterprise Linux 8.8 Extended Update Support | RedHat | python3-0:3.6.8-51.el8_8.6 | * |
| Red Hat Enterprise Linux 8.8 Extended Update Support | RedHat | python3.11-0:3.11.2-2.el8_8.3 | * |
| Red Hat Enterprise Linux 9 | RedHat | python3.11-0:3.11.7-1.el9_4.1 | * |
| Red Hat Enterprise Linux 9 | RedHat | python3.9-0:3.9.18-3.el9_4.1 | * |
| Red Hat Enterprise Linux 9 | RedHat | python3.9-0:3.9.18-3.el9_4.1 | * |
| Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions | RedHat | python3.9-0:3.9.10-4.el9_0.4 | * |
| Red Hat Enterprise Linux 9.2 Extended Update Support | RedHat | python3.11-0:3.11.2-2.el9_2.4 | * |
| Red Hat Enterprise Linux 9.2 Extended Update Support | RedHat | python3.9-0:3.9.16-1.el9_2.5 | * |
| Red Hat OpenShift Container Platform 4.12 | RedHat | rhcos-412.86.202501011408-0 | * |
| Red Hat OpenShift Container Platform 4.13 | RedHat | rhcos-413.92.202501201944-0 | * |
| Red Hat OpenShift Container Platform 4.14 | RedHat | rhcos-414.92.202501150310-0 | * |
| Red Hat OpenShift Container Platform 4.15 | RedHat | rhcos-415.92.202501152057-0 | * |
| Red Hat OpenShift Container Platform 4.16 | RedHat | rhcos-416.94.202501220853-0 | * |
| Red Hat OpenShift Container Platform 4.17 | RedHat | rhcos-417.94.202502051822-0 | * |
| Red Hat OpenShift Container Platform 4.18 | RedHat | rhcos-418.94.202503102036-0 | * |
| Service Interconnect 1.4 for RHEL 9 | RedHat | service-interconnect/skupper-router-rhel9:2.4.3-5 | * |
| Service Interconnect 1 for RHEL 9 | RedHat | service-interconnect/skupper-router-rhel9:2.5.3-2 | * |
| Python3.10 | Ubuntu | jammy | * |
| Python3.10 | Ubuntu | upstream | * |
| Python3.11 | Ubuntu | esm-apps/jammy | * |
| Python3.11 | Ubuntu | jammy | * |
| Python3.11 | Ubuntu | mantic | * |
| Python3.12 | Ubuntu | mantic | * |
| Python3.4 | Ubuntu | trusty/esm | * |
| Python3.5 | Ubuntu | esm-infra/xenial | * |
| Python3.7 | Ubuntu | esm-apps/bionic | * |
| Python3.8 | Ubuntu | esm-apps/bionic | * |
| Python3.8 | Ubuntu | esm-infra/focal | * |
| Python3.8 | Ubuntu | focal | * |
| Python3.8 | Ubuntu | upstream | * |
| Python3.9 | Ubuntu | esm-apps/focal | * |
| Python3.9 | Ubuntu | focal | * |
| Python3.9 | Ubuntu | upstream | * |
References
- 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/
- 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.debian.org/debian-lts-announce/2024/11/msg00005.html
- https://lists.debian.org/debian-lts-announce/2024/12/msg00000.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/