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CVE-2021-28678

python-pillow: Excessive looping in BLP image reader

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Severity

Moderate

Red Hat Product Security

7.5

CVSS 3.1

Review impact separately from score.

Published · April 1, 2021

Updated · June 28, 2026

Description

A flaw was found in python-pillow. BlpImagePlugin did not properly check that reads after jumping to file offsets returned data. This could lead to a denial-of-service where the decoder could be run a large number of times on empty data.

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

To mitigate this feature on Red Hat Quay keep the invoice generation feature disabled, as it is by default.

CVSS / CWE

CVSS 3.1 · 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE-20 · Improper Input Validation