Pillow is a Python imaging library. Prior to 12.3.0, PIL/FontFile.py FontFile.compile() assembled per-glyph images into a combined bitmap with Image.new(1, (xsize, ysize)) without calling Image._decompression_bomb_check(), allowing a font to trigger excessive allocation during conversion or saving. This issue is fixed in version 12.3.0.
Weakness
The product allocates memory based on an untrusted, large size value, but it does not ensure that the size is within expected limits, allowing arbitrary amounts of memory to be allocated.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Pillow | Python | * | 12.3.0 (excluding) |
| Red Hat Ansible Automation Platform 2.5 for RHEL 8 | RedHat | python3.12-pillow-0:12.3.0-1.el8ap | * |
| Red Hat Ansible Automation Platform 2.5 for RHEL 9 | RedHat | python3.12-pillow-0:12.3.0-1.el9ap | * |
| Red Hat Ansible Automation Platform 2.6 for RHEL 9 | RedHat | python3.12-pillow-0:12.3.0-1.el9ap | * |
| Red Hat Enterprise Linux 8 | RedHat | python-pillow-0:5.1.1-22.el8_10 | * |
| Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | RedHat | python-pillow-0:5.1.1-15.el8_4.2 | * |
| Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | RedHat | python-pillow-0:5.1.1-15.el8_4.2 | * |
| Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | RedHat | python-pillow-0:5.1.1-20.el8_6 | * |
| Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On | RedHat | python-pillow-0:5.1.1-20.el8_6 | * |
| Red Hat Enterprise Linux 8.8 Telecommunications Update Service | RedHat | python-pillow-0:5.1.1-20.el8_8 | * |
| Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | RedHat | python-pillow-0:5.1.1-20.el8_8 | * |
| Red Hat Satellite 6.16 for RHEL 8 | RedHat | python-pillow-0:12.3.0-1.el8pc | * |
| Red Hat Satellite 6.16 for RHEL 8 | RedHat | python-pillow-0:12.3.0-1.el8pc | * |
| Red Hat Satellite 6.16 for RHEL 9 | RedHat | python-pillow-0:12.3.0-1.el9pc | * |
| Red Hat Satellite 6.16 for RHEL 9 | RedHat | python-pillow-0:12.3.0-1.el9pc | * |
| Red Hat Satellite 6.17 for RHEL 9 | RedHat | python-pillow-0:12.3.0-1.el9pc | * |
| Red Hat Satellite 6.17 for RHEL 9 | RedHat | python-pillow-0:12.3.0-1.el9pc | * |
| Red Hat Satellite 6.18 for RHEL 9 | RedHat | python3.12-pillow-0:12.3.0-1.el9pc | * |
| Red Hat Satellite 6.18 for RHEL 9 | RedHat | python3.12-pillow-0:12.3.0-1.el9pc | * |
| Red Hat Satellite 6.19 for RHEL 9 | RedHat | python3.12-pillow-0:12.3.0-1.el9pc | * |
| Red Hat Satellite 6.19 for RHEL 9 | RedHat | python3.12-pillow-0:12.3.0-1.el9pc | * |
| Red Hat Ansible Automation Platform 2.6 | RedHat | ansible-automation-platform-26/hub-rhel9:1785753568 | * |
| Red Hat Ansible Automation Platform 2.6 | RedHat | ansible-automation-platform-26/lightspeed-chatbot-rhel9:1785646188 | * |
| Red Hat Ansible Automation Platform 2.7 | RedHat | ansible-automation-platform-27/hub-rhel9:1785376164 | * |
| Red Hat Ansible Automation Platform 2.7 | RedHat | ansible-automation-platform-27/lightspeed-chatbot-rhel9:1785426734 | * |
| Red Hat Quay 3.12 | RedHat | quay/quay-rhel8:1786170635 | * |
| Red Hat Quay 3.15 | RedHat | quay/quay-rhel8:1785261506 | * |
| Red Hat Quay 3.9 | RedHat | quay/quay-rhel8:1785950004 | * |
| Pillow | Ubuntu | questing | * |
Potential Mitigations
References
- https://github.com/python-pillow/Pillow/blob/main/docs/releasenotes/12.3.0.rst
- https://github.com/python-pillow/Pillow/commit/0a263e6264aa5399988d9acd3bbfbca2ca3ec77d
- https://github.com/python-pillow/Pillow/security/advisories/GHSA-5x94-69rx-g8h2
- https://github.com/python-pillow/Pillow/security/advisories/GHSA-5x94-69rx-g8h2