Home/CVE/A flaw was found in ImageMagick in coders/webp.c. An attacker who submits a crafted file that is processed by ImageMagic
CVE

CVE-2021-20245

A flaw was found in ImageMagick in coders/webp.c. An attacker who submits a crafted file that is processed by ImageMagic

A flaw was found in ImageMagick in coders/webp.c. An attacker who submits a crafted file that is processed by ImageMagick could trigger undefined behavior in the form of math division by zero. The highest threat from this vulnerability is to system availability.

MEDIUM · CVSS 5.5 EPSS 0.00234
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-369Divide By Zero
▤

Affected Products & Versions

5
imagemagick< 6.9.11-62
imagemagick>= 7.0.0 and < 7.0.10-62
redhat enterprise linuxall versions
fedoraproject fedoraall versions
debian linuxall versions
▣

Scoring & Timeline

5.5
MEDIUM · CVSS v3.1 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD09 Mar 2021 · 07:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

2
usnUSN-5736-2
usnUSN-5736-1
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://bugzilla.redhat.com/show_bug.cgi?id=1928943Issue TrackingPatchThird Party Advisory
https://github.com/ImageMagick/ImageMagick/issues/3176Issue TrackingPatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2021/06/msg00000.htmlMailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2023/05/msg00020.html
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