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Fencer Intel
medium 5.4

CVE-2020-35655 json

Pillow Out-of-bounds Read

published 5y ago modified 2mo ago also BIT-pillow-2020-35655 , EUVD-2021-0182 , GHSA-hf64-x4gq-p99h , PYSEC-2021-71

cvss
5.4
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.7%
EPSS 1.7% chance of exploitation in 30 days, percentile 76%
public exploits
0
none known

Summary

In Pillow before 8.1.0, SGIRleDecode has a 4-byte buffer over-read when decoding crafted SGI RLE image files because offsets and length tables are mishandled.

Patch / fix

  • pypi pillow 8.1.0
  • bitnami pillow 8.1.0
  • python pillow 8.1.0
  • pillow Debian 14, Debian 13, Debian 12 8.1.0-1

debian advisories DEBIAN-CVE-2020-35655

  • pillow Ubuntu 18.04 LTS 5.1.0-1ubuntu0.4
  • pillow Ubuntu 20.04 LTS 7.0.0-4ubuntu0.2

ubuntu advisories UBUNTU-CVE-2020-35655

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • python-pillow RHEL 8 5.1.1-16.el8
  • python3-pillow RHEL 8 5.1.1-16.el8

red hat advisories RHSA-2021:4149

  • python-Pillow OpenStack Cloud Crowbar 9, OpenStack Cloud 9 5.2.0-3.8.1

suse advisories SUSE-SU-2021:1938-1

  • python-Pillow openSUSE Tumbleweed 12.3.0-1.1
  • python-Pillow openSUSE Tumbleweed 8.3.2-1.2
  • python-Pillow openSUSE Tumbleweed 10.3.0-1.1
  • python-Pillow openSUSE Leap 15.2 8.3.1-lp152.5.3.1
  • python-CairoSVG openSUSE Leap 15.2 2.5.1-lp152.2.3.1

opensuse advisories openSUSE-SU-2026:11261-1openSUSE-SU-2024:11209-1openSUSE-SU-2024:13827-1openSUSE-SU-2021:1134-1

  • python3-pillow AlmaLinux 8 5.1.1-16.el8

almalinux advisories ALSA-2021:4149

  • python-pillow Rocky Linux 8 5.1.1-16.el8

rocky linux advisories RLSA-2021:4149

  • py3-pillow Alpine 3.12 7.1.2-r1
  • py3-pillow Alpine 3.13 7.2.0-r1
  • py3-pillow Alpine 3.24, Alpine 3.23, Alpine 3.22 +8 more 8.1.0-r0

alpine advisories ALPINE-CVE-2020-35655

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • python-pillow Arch Linux 8.1.0-1

arch linux advisories AVG-1438

Is CVE-2020-35655 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2020-35655 updated cvss 5.4

python-pillow: Buffer over-read in SGI RLE image reader

  • Red Hat Enterprise Linux 7 python-pillow, python-pillow-qt, python-pillow-tk, python-pillow-sane
    affected: no fix planned “Out of support scope”
  • Red Hat Quay 3 quay/quay-rhel8
    affected: no fix available
  • Red Hat Enterprise Linux AppStream (v. 8) python-pillow 5.1.1-16.el8, python3-pillow 5.1.1-16.el8
    fixed: vendor fix RHSA-2021:4149
  • Red Hat Enterprise Linux 9 python-pillow Red Hat Quay 3 quay/quay-builder-qemu-rhcos-rhel8
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.66% chance of exploitation in the next 30 days, higher than 76% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
GitHub 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L
NVD 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L
NVD 2.0 5.8 AV:N/AC:M/Au:N/C:P/I:N/A:P
OSV 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L

Affected packages

ecosystem package affected fixed in
pypi pillow
>=4.3.0, <8.1.0
8.1.0
bitnami pillow
>=4.3.0, <8.1.0
8.1.0

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.