CVE-2020-35654

python-pillow: decoding crafted YCbCr files could result in heap-based buffer overflow

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Severity

Moderate

Red Hat Product Security

9.8

CVSS 3.1

Review impact separately from score.

Published · January 3, 2021

Updated · June 28, 2026

Description

A flaw was found in python-pillow. TiffDecode has a heap-based buffer overflow when decoding crafted YCbCr files because of certain interpretation conflicts with LibTIFF in RGBA mode. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Statement

python-pillow as shipped with Red Hat Enterprise Linux 7 and 8 are not affected by this flaw as the flaw was introduced in a newer version than shipped.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE-787 · Out-of-bounds Write