critical
CVE-2021-25289
python-pillow: insufficent fix for CVE-2020-35654 due to incorrect error checking in TiffDecode.c
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.
Severity by source
NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
GHSA9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Red Hat9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Bitnami9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Trivy's own label is CRITICAL. Rated critical by NVD, GHSA, Bitnami. Rated lower by Red Hat (high), Ubuntu (medium).
Description
An issue was discovered in Pillow before 8.1.1. TiffDecode has a heap-based buffer overflow when decoding crafted YCbCr files because of certain interpretation conflicts with LibTIFF in RGBA mode. NOTE: this issue exists because of an incomplete fix for CVE-2020-35654.
Affected packages and fixed versions
| Source | Package | Fixed in |
|---|---|---|
| bitnami::Bitnami Vulnerability Database | pillow | 8.1.1 |
| pip::GitHub Security Advisory pip | pillow | 8.1.1 |
| alpine 3.14 | py3-pillow | 8.1.2-r0 |
| alpine 3.15 | py3-pillow | 8.1.2-r0 |
| alpine 3.16 | py3-pillow | 8.1.2-r0 |
| alpine 3.17 | py3-pillow | 8.1.2-r0 |
| alpine 3.18 | py3-pillow | 8.1.2-r0 |
| alpine 3.19 | py3-pillow | 8.1.2-r0 |
| alpine 3.20 | py3-pillow | 8.1.2-r0 |
| alpine 3.21 | py3-pillow | 8.1.2-r0 |
| alpine 3.22 | py3-pillow | 8.1.2-r0 |
| alpine 3.23 | py3-pillow | 8.1.2-r0 |
Show all 22 entries from 22 sources
| Source | Package | Fixed in |
|---|---|---|
| bitnami::Bitnami Vulnerability Database | pillow | 8.1.1 |
| pip::GitHub Security Advisory pip | pillow | 8.1.1 |
| alpine 3.14 | py3-pillow | 8.1.2-r0 |
| alpine 3.15 | py3-pillow | 8.1.2-r0 |
| alpine 3.16 | py3-pillow | 8.1.2-r0 |
| alpine 3.17 | py3-pillow | 8.1.2-r0 |
| alpine 3.18 | py3-pillow | 8.1.2-r0 |
| alpine 3.19 | py3-pillow | 8.1.2-r0 |
| alpine 3.20 | py3-pillow | 8.1.2-r0 |
| alpine 3.21 | py3-pillow | 8.1.2-r0 |
| alpine 3.22 | py3-pillow | 8.1.2-r0 |
| alpine 3.23 | py3-pillow | 8.1.2-r0 |
| alpine 3.24 | py3-pillow | 8.1.2-r0 |
| alpine edge | py3-pillow | 8.1.2-r0 |
| debian 11 | pillow | 8.1.1-1 |
| debian 12 | pillow | 8.1.1-1 |
| debian 13 | pillow | 8.1.1-1 |
| debian 14 | pillow | 8.1.1-1 |
| echo | pillow | 8.1.1-1 |
| ubuntu 20.04 | pillow | 7.0.0-4ubuntu0.3 |
| ubuntu 20.04-ESM | pillow | 7.0.0-4ubuntu0.3 |
| ubuntu 20.10 | pillow | 7.2.0-1ubuntu0.2 |
References
- https://access.redhat.com/security/cve/CVE-2021-25289
- https://github.com/advisories/GHSA-57h3-9rgr-c24m
- https://github.com/pypa/advisory-database/tree/main/vulns/pillow/PYSEC-2021-35.yaml
- https://github.com/python-pillow/Pillow
- https://github.com/python-pillow/Pillow/commit/3fee28eb9479bf7d59e0fa08068f9cc4a6e2f04c
- https://github.com/python-pillow/Pillow/commit/cbfdde7b1f2295059a20a539ee9960f0bec7b299
- https://nvd.nist.gov/vuln/detail/CVE-2021-25289
- https://pillow.readthedocs.io/en/stable/releasenotes/8.1.1.html