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Fencer Vulns
medium 4.4

CVE-2021-39212 json

Issue when Configuring the ImageMagick Security Policy

published 2021-09-13 5 y ago modified 2026-07-30 3 mo ago also EUVD-2021-25590 , JLSEC-2026-890

cvss
4.4
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 29%
public exploits
0
none known

Summary

ImageMagick is free software delivered as a ready-to-run binary distribution or as source code that you may use, copy, modify, and distribute in both open and proprietary applications. In affected versions and in certain cases, Postscript files could be read and written when specifically excluded by a `module` policy in `policy.xml`. ex. <policy domain="module" rights="none" pattern="PS" />. The issue has been resolved in ImageMagick 7.1.0-7 and in 6.9.12-22. Fortunately, in the wild, few users utilize the `module` policy and instead use the `coder` policy that is also our workaround recommendation: <policy domain="coder" rights="none" pattern="{PS,EPI,EPS,EPSF,EPSI}" />.

Patch / fix

  • julia ImageMagick_jll 6.9.12+1
  • imagemagick imagemagick 6.9.12-22, 7.1.0-7
  • imagemagick Debian 14, Debian 13, Debian 12 8:6.9.11.60+dfsg-1.5

debian advisories DEBIAN-CVE-2021-39212

  • imagemagick Ubuntu 20.04 LTS 8:6.9.10.23+dfsg-2.1ubuntu11.9
  • imagemagick Ubuntu Pro 22.04 LTS 8:6.9.11.60+dfsg-1.3ubuntu0.22.04.1+esm1

ubuntu advisories UBUNTU-CVE-2021-39212

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • imagemagick Alpine 3.24, Alpine 3.23, Alpine 3.22 +7 more 7.1.0.10-r0
  • imagemagick6 Alpine 3.16, Alpine 3.15 6.9.12.31-r0

alpine advisories ALPINE-CVE-2021-39212

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • imagemagick Arch Linux 7.1.0.7-1

arch linux advisories AVG-2378

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2021-39212 updated cvss 4.4

ImageMagick: possible read or write in postscript files

  • Red Hat Enterprise Linux 6 ImageMagick, ImageMagick-c++, ImageMagick-perl Red Hat Enterprise Linux 7 ImageMagick, ImageMagick-c++, ImageMagick-perl
    affected: workaround, no fix planned “Users are advised to use the coder policy instead of the module policy as a workaround.”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.35% chance of exploitation in the next 30 days, higher than 29% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 4.4 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
NVD 3.1 3.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
NVD 2.0 3.6 AV:L/AC:L/Au:N/C:P/I:P/A:N
OSV 3.1 3.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N

Affected packages

ecosystem package affected fixed in
julia ImageMagick_jll
>=6.9.12+0, <6.9.12+1
6.9.12+1

Affected products

  • ImageMagick ImageMagick

Classification

Weakness
  • CWE-668 Exposure of Resource to Wrong Sphere
  • CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.