CVE-2020-35653

HIGH7.1EPSS 0.29%

pillow - security update

Published: 3/18/2021Modified: 4/28/2026

Description

In Pillow before 8.1.0, PcxDecode has a buffer over-read when decoding a crafted PCX file because the user-supplied stride value is trusted for buffer calculations.

Affected packages (6)

Alpine/py3-pillowfrom 0, < 8.1.0-r0
Bitnami/pillowfrom 0, < 8.1.0
Debian/pillowfrom 0, < 8.1.0-1
Debian/pillowfrom 0, < 4.0.0-4+deb9u3
PyPI/pillowfrom 0, < 8.1.0
PyPI/pillowfrom 0, < 8.1.0

CVSS scores

Source	Version	Severity	Vector
osv	CVSS 4.0	—	CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
osv	CVSS 3.1	HIGH7.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

References (15)

ADVISORYhttps://github.com/advisories/GHSA-f5g8-5qq7-938w
ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2020-35653
ADVISORYhttps://security.alpinelinux.org/vuln/CVE-2020-35653
ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2020-35653
PATCHhttps://github.com/python-pillow/Pillow
WEBhttps://github.com/pypa/advisory-database/tree/main/vulns/pillow/PYSEC-2021-69.yaml
WEBhttps://github.com/python-pillow/Pillow/commit/2f409261eb1228e166868f8f0b5da5cda52e55bf
WEBhttps://lists.debian.org/debian-lts-announce/2021/07/msg00018.html
WEBhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6BYVI5G44MRIPERKYDQEL3S3YQCZTVHE/
WEBhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BF553AMNNNBW7SH4IM4MNE4M6GNZQ7YD/
WEBhttps://lists.fedoraproject.org/archives/list/[email protected]/message/6BYVI5G44MRIPERKYDQEL3S3YQCZTVHE
WEBhttps://lists.fedoraproject.org/archives/list/[email protected]/message/6BYVI5G44MRIPERKYDQEL3S3YQCZTVHE/
WEBhttps://lists.fedoraproject.org/archives/list/[email protected]/message/BF553AMNNNBW7SH4IM4MNE4M6GNZQ7YD
WEBhttps://lists.fedoraproject.org/archives/list/[email protected]/message/BF553AMNNNBW7SH4IM4MNE4M6GNZQ7YD/
WEBhttps://pillow.readthedocs.io/en/stable/releasenotes/index.html