Description
Pillow before 8.1.2 allows attackers to cause a denial of service (memory consumption) because the reported size of a contained image is not properly checked for an ICNS container, and thus an attempted memory allocation can be very large.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | pillow | 8.1.2-1 | — |
| Debian 13 | pillow | 8.1.2-1 | — |
| Debian 12 | pillow | 8.1.2-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | pillow | 7.0.0-4ubuntu0.3 | USN-4763-1 |
| Ubuntu 18.04 LTS | pillow | 5.1.0-1ubuntu0.5 | USN-4763-1 |
| Ubuntu 16.04 LTS | pillow | 3.1.2-0ubuntu1.6 | USN-4763-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | pillow-python2 | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | python-pillow +1 | 5.1.1-16.el8 | RHSA-2021:4149 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | python3-pillow | 5.1.1-16.el8 | ALSA-2021:4149 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | python-pillow | 5.1.1-16.el8 | RLSA-2021:4149 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP6 | python-Pillow | 7.2.0-150300.3.15.1 | SUSE-SU-2024:1673-2 |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SUSE OpenStack Cloud Crowbar 9 | python-Pillow | 5.2.0-3.8.1 | SUSE-SU-2021:1938-1 |
| SUSE OpenStack Cloud Crowbar 8 | python-Pillow | 4.2.1-3.14.1 | SUSE-SU-2021:1939-1 |
| SUSE OpenStack Cloud 9 | python-Pillow | 5.2.0-3.8.1 | SUSE-SU-2021:1938-1 |
| SUSE OpenStack Cloud 8 | python-Pillow | 4.2.1-3.14.1 | SUSE-SU-2021:1939-1 |
| SUSE OpenStack Cloud 7 | python-Pillow | 2.8.1-4.22.1 | SUSE-SU-2021:1940-1 |
| SUSE HPE Helion OpenStack 8 | python-Pillow | 4.2.1-3.14.1 | SUSE-SU-2021:1939-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.5 | python-Pillow | 7.2.0-150300.3.15.1 | SUSE-SU-2024:1673-1 |
| openSUSE Leap 15.2 | python-CairoSVG | 2.5.1-lp152.2.3.1 | openSUSE-SU-2021:1134-1 |
| openSUSE Leap 15.2 | python-Pillow | 8.3.1-lp152.5.3.1 | openSUSE-SU-2021:1134-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | py3-pillow | 8.1.2-r0 | — |
| Alpine v3.23 | py3-pillow | 8.1.2-r0 | — |
| Alpine v3.22 | py3-pillow | 8.1.2-r0 | — |
| Alpine v3.21 | py3-pillow | 8.1.2-r0 | — |
| Alpine v3.20 | py3-pillow | 8.1.2-r0 | — |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | py3-pillow | 8.1.2-r0 | — |
| Alpine v3.18 | py3-pillow | 8.1.2-r0 | — |
| Alpine v3.17 | py3-pillow | 8.1.2-r0 | — |
| Alpine v3.16 | py3-pillow | 8.1.2-r0 | — |
| Alpine v3.15 | py3-pillow | 8.1.2-r0 | — |
| Alpine v3.14 | py3-pillow | 8.1.2-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | python3-pillow +2 | 9.4.0-2.amzn2023.0.1 | ALAS2023-2023-146 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| PyPI | pillow | < 8.1.2 | 8.1.2 | GHSA-3wvg-mj6g-m9cv |
| PyPI | pillow | < 8.1.1 | 8.1.1 | PYSEC-2021-41 |
Advisories 12
- ALSA-2021:4149 Moderate: python-pillow security update AlmaLinux Security Advisories · Oct 29, 2026
- WID-SEC-2022-1835 Red Hat Enterprise Linux (python-pillow): Mehrere Schwachstellen BSI CERT-Bund (WID) · Jul 14, 2026
- RHSA-2021:4149 Red Hat Security Advisory: python-pillow security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- USN-4763-1 pillow vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- RLSA-2021:4149 Moderate: python-pillow security update Rocky Linux Security Advisories · Feb 4, 2026
- SUSE-SU-2021:1939-1 Security update for python-Pillow SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:1938-1 Security update for python-Pillow SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:1940-1 Security update for python-Pillow SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:1134-1 Security update for python-CairoSVG, python-Pillow SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1673-1 Security update for python-Pillow SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1673-2 Security update for python-Pillow SUSE / openSUSE Security Updates · Feb 4, 2026
- ALAS2023-2023-146 Important: python-pillow security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Mar 22, 2023
References
- FEDORA-2021-0ece308612 vendor-advisory
- FEDORA-2021-15845d3abe vendor-advisory
- FEDORA-2021-9016a9b7bd vendor-advisory
- GLSA-202107-33 vendor-advisory
- https://pillow.readthedocs.io/en/stable/releasenotes/8.1.2.html