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CVE-2021-20176

MEDIUM
5.5
CVSS Score
Published: February 5, 2021 at 12:00 AM UTC
Updated: June 17, 2026 at 03:33 AM UTC
2 products affected across 2 vendorsDebian LinuxImageMagick

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.9%

Description

A divide-by-zero flaw was found in ImageMagick 6.9.11-57 and 7.0.10-57 in gem.c. This flaw allows an attacker who submits a crafted file that is processed by ImageMagick to trigger undefined behavior through a division by zero. The highest threat from this vulnerability is to system availability.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Debian Linux· Debiandrupal
95%
9.0
ImageMagick· Imagemagick
95%
v < 6.9.11-577.0.0-0 ≤ v < 7.0.10-566.9.11-577.0.10-57
Affected range stops below 6.9.11-57, so it looks safe — our inference, not a vendor statement
Affected range stops below 7.0.10-56, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (3)

Issue Tracking
Source: [email protected]
https://bugzilla.redhat.com/show_bug.cgi?id=1916610
Mailing ListThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2021/03/msg00030.html
Mailing List
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2023/05/msg00020.html

CVSS

5.5MEDIUM[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-369

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