An issue was found in the CPython zipfile module affecting versions 3.12.1, 3.11.7, 3.10.13, 3.9.18, and 3.8.18 and prior.
The zipfile module is vulnerable to “quoted-overlap” zip-bombs which exploit the zip format to create a zip-bomb with a high compression ratio. The fixed versions of CPython makes the zipfile module reject zip archives which overlap entries in the archive.
Weakness
The product does not properly control situations in which an adversary can cause the product to consume or produce excessive resources without requiring the adversary to invest equivalent work or otherwise prove authorization, i.e., the adversary’s influence is “asymmetric.”
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 | python3.12-0:3.12.3-2.el8_10 | * |
| Red Hat Enterprise Linux 8 | RedHat | python3-0:3.6.8-62.el8_10 | * |
| 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 9 | RedHat | python3.9-0:3.9.18-3.el9_4.1 | * |
| Red Hat Enterprise Linux 9 | RedHat | python3.12-0:3.12.5-2.el9 | * |
| Red Hat Enterprise Linux 9 | RedHat | python3.11-0:3.11.9-7.el9 | * |
| Red Hat Enterprise Linux 9 | RedHat | python3.9-0:3.9.18-3.el9_4.1 | * |
| 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 | * |
| Python2.7 | Ubuntu | esm-apps/focal | * |
| Python2.7 | Ubuntu | esm-apps/jammy | * |
| Python2.7 | Ubuntu | focal | * |
| Python2.7 | Ubuntu | jammy | * |
| Python2.7 | Ubuntu | trusty/esm | * |
| 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 | * |
| Python3.12 | Ubuntu | upstream | * |
| Python3.4 | Ubuntu | trusty/esm | * |
| Python3.5 | Ubuntu | esm-infra-legacy/trusty | * |
| Python3.5 | Ubuntu | esm-infra/xenial | * |
| Python3.5 | Ubuntu | trusty/esm | * |
| Python3.6 | Ubuntu | esm-infra/bionic | * |
| 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 | * |
Potential Mitigations
References
- http://www.openwall.com/lists/oss-security/2024/03/20/5
- https://github.com/python/cpython/commit/30fe5d853b56138dbec62432d370a1f99409fc85
- https://github.com/python/cpython/commit/66363b9a7b9fe7c99eba3a185b74c5fdbf842eba
- https://github.com/python/cpython/commit/70497218351ba44bffc8b571201ecb5652d84675
- https://github.com/python/cpython/commit/a2c59992e9e8d35baba9695eb186ad6c6ff85c51
- https://github.com/python/cpython/commit/a956e510f6336d5ae111ba429a61c3ade30a7549
- https://github.com/python/cpython/commit/d05bac0b74153beb541b88b4fca33bf053990183
- https://github.com/python/cpython/commit/fa181fcf2156f703347b03a3b1966ce47be8ab3b
- https://github.com/python/cpython/issues/109858
- https://lists.debian.org/debian-lts-announce/2024/03/msg00024.html
- 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/XELNUX2L3IOHBTFU7RQHCY6OUVEWZ2FG/
- https://www.bamsoftware.com/hacks/zipbomb/
- http://www.openwall.com/lists/oss-security/2024/03/20/5
- https://github.com/python/cpython/commit/30fe5d853b56138dbec62432d370a1f99409fc85
- https://github.com/python/cpython/commit/66363b9a7b9fe7c99eba3a185b74c5fdbf842eba
- https://github.com/python/cpython/commit/70497218351ba44bffc8b571201ecb5652d84675
- https://github.com/python/cpython/commit/a2c59992e9e8d35baba9695eb186ad6c6ff85c51
- https://github.com/python/cpython/commit/a956e510f6336d5ae111ba429a61c3ade30a7549
- https://github.com/python/cpython/commit/d05bac0b74153beb541b88b4fca33bf053990183
- https://github.com/python/cpython/commit/fa181fcf2156f703347b03a3b1966ce47be8ab3b
- https://github.com/python/cpython/issues/109858
- https://lists.debian.org/debian-lts-announce/2024/03/msg00024.html
- 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/XELNUX2L3IOHBTFU7RQHCY6OUVEWZ2FG/
- https://security.netapp.com/advisory/ntap-20250411-0005/
- https://www.bamsoftware.com/hacks/zipbomb/