CVE Database›Document archive›CVE-2021-3962

CVE-2021-3962

ImageMagick: heap-use-after-free in at dcm.c RelinquishDCMMemory

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Severity

Moderate

Red Hat Product Security

5.3

CVSS 3.1

Review impact separately from score.

Published · November 15, 2021

Updated · November 22, 2025

Description

A flaw was found in ImageMagick where it did not properly sanitize certain input before using it to invoke convert processes. This flaw allows an attacker to create a specially crafted image that leads to a use-after-free vulnerability when processed by ImageMagick. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

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 · 5.3
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

CWE-416 · Use After Free