Pillow before 7.1.0 has multiple out-of-bounds reads in libImaging/FliDecode.c.
Priority LOW 28CWE-125Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Partial Red Hat: 1 fixed, 4 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-125 and the CVSS impact.
Summary
Pillow before 7.1.0 has multiple out-of-bounds reads in libImaging/FliDecode.c.
Why it matters now
EPSS 0.0148 74th percentileScored 2026-11-07
Fix Partial pillow (PyPI): 7.1.0Red Hat: 1 advisoryRed Hat: 1 fixed, 4 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | pillow (PyPI) | before 7.1.0 | 7.1.0 | Patch available | GHSA-cqhg-xjhh-p8hf |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- pillow (PyPI) Vendor— Affected before 7.1.0 Fixed in 7.1.0 Patch available GHSA-cqhg-xjhh-p8hf
CPE configurations NVD · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:python:pillow:*:*:*:*:*:*:*:* | before 7.1.0 | Vulnerable | python-pillow |
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | 9.0 | Vulnerable | Debian |
| cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* | 31 | Vulnerable | Fedoraproject |
| cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* | 32 | Vulnerable | Fedoraproject |
| cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* | 16.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* | 18.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:* | 20.04 | Vulnerable | Canonical |
- cpe:2.3:a:python:pillow:*:*:*:*:*:*:*:* Versions before 7.1.0 Vulnerable ·python-pillow
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
- cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* Versions 31 Vulnerable ·Fedoraproject
- cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* Versions 32 Vulnerable ·Fedoraproject
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* Versions 16.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* Versions 18.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:* Versions 20.04 Vulnerable ·Canonical
Remediation
- Fix · GHSA-cqhg-xjhh-p8hf pillow (PyPI) Fixed in 7.1.0 Advisory →
Red Hat 1 advisory
- RHSA-2021:0420 Released 2021-02-04 · Red Hat rating ModerateRed Hat Quay v3.4.0 security update
- Quay v3 quay/clair-rhel8, quay/quay-bridge-operator-bundle, quay/quay-bridge-operator-rhel8 +8
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 5 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Quay v3 | Fixed | RHSA-2021:0420 |
Timeline
- 2026-10-02 Threatist record created from CVE-2020-10177
- 2026-10-03 Alias added: GHSA-cqhg-xjhh-p8hf
References
Patch 2
Advisory 7
Other 21
- https://github.com/python-pillow/Pillow/commits/master/src/libImaging
- https://pillow.readthedocs.io/en/stable/releasenotes/7.1.0.html
- https://github.com/python-pillow/Pillow/issues/4750
- https://github.com/python-pillow/Pillow/commit/f6926a041b4b544fd2ced3752542afb6c8c19405
- https://github.com/python-pillow/Pillow/commit/c88b0204d7c930e3bd72626ae6ea078571cc0ea7
- https://github.com/python-pillow/Pillow/commit/c66d8aa75436f334f686fe32bca8e414bcdd18e6
- https://github.com/python-pillow/Pillow/commit/c5edc361fd6450f805a6a444723b0f68190b1d0c
- https://github.com/python-pillow/Pillow/commit/b4e439d6d7fd986cd6b4c7f9ca18830d79dacd44
- https://github.com/python-pillow/Pillow/commit/8d4f3c0c5f2fecf175aeb895e9c2d6d06d85bdc9
- https://github.com/python-pillow/Pillow/commit/5b490fc413dfab2d52de46a58905c25d9badb650
- https://github.com/python-pillow/Pillow/commit/19ff42bd683486a8a308743c76972ef6a6482e9b
- https://github.com/python-pillow/Pillow/commit/11ef7ca53a7d0af4bc52666c29199deffa5fc1bd
- https://github.com/python-pillow/Pillow/commit/088ce4df981b70fbec140ee54417bcb49a7dffca
- https://github.com/python-pillow/Pillow/commit/00c6dd72d9ed0124cec81040b4bab0979a200fe2
- https://pillow.readthedocs.io/en/stable/releasenotes/6.2.3.html
- https://lists.fedoraproject.org/archives/list/[email protected]/message/HOKHNWV2VS5GESY7IBD237E7C6T3I427
- https://usn.ubuntu.com/4430-1
- https://usn.ubuntu.com/4430-2
- https://lists.fedoraproject.org/archives/list/[email protected]/message/BEBCPE4F2VHTIT6EZA2YZQZLPVDEBJGD
- https://github.com/python-pillow/Pillow
- https://github.com/pypa/advisory-database/tree/main/vulns/pillow/PYSEC-2020-76.yaml
Sources
- CVE-2020-10177 · CVE Program
- CVE-2020-10177 · NVD
- FIRST EPSS
- GHSA-cqhg-xjhh-p8hf · GitHub Advisory Database · CC BY 4.0
- CVE-2020-10177 · Red Hat security data · CC BY 4.0
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