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CVE-2016-3718

ImageMagick: SSRF vulnerability

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Severity

Low

Red Hat Product Security

4.3

CVSS 2.0

Review impact separately from score.

Published · May 3, 2016

Updated · November 21, 2025

Description

A server-side request forgery flaw was discovered in the way ImageMagick processed certain images. A remote attacker could exploit this flaw to mislead an application using ImageMagick or an unsuspecting user using the ImageMagick utilities into, for example, performing HTTP(S) requests or opening FTP sessions via specially crafted images.

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

Details can be found under the resolve tab at https://access.redhat.com/security/vulnerabilities/2296071

Red Hat Enterprise Linux 6 and 7

As a workaround the /etc/ImageMagick/policy.xml file can be edited to disable processing of MVG, HTTPS, HTTP, URL, FTP, EPHEMERAL, MSL, LABEL, TEXT, SHOW, WIN and PLT commands within image files, simply add the following lines:

<policy domain="coder" rights="none" pattern="EPHEMERAL" /> <policy domain="coder" rights="none" pattern="HTTPS" /> <policy domain="coder" rights="none" pattern="HTTP" /> <policy domain="coder" rights="none" pattern="URL" /> <policy domain="coder" rights="none" pattern="FTP" /> <policy domain="coder" rights="none" pattern="MVG" /> <policy domain="coder" rights="none" pattern="MSL" /> <policy domain="coder" rights="none" pattern="TEXT" /> <policy domain="coder" rights="none" pattern="LABEL" /> <policy domain="coder" rights="none" pattern="SHOW" /> <policy domain="coder" rights="none" pattern="WIN" /> <policy domain="coder" rights="none" pattern="PLT" /> <policy domain="path" rights="none" pattern="@*" />

within the policy map stanza:

<policymap> ... </policymap>

Red Hat Enterprise Linux 5

In the following folders: /usr/lib64/ImageMagick-6.2.8/modules-Q16/coders/ (64bit package) or /usr/lib/ImageMagick-6.2.8/modules-Q16/coders/ (32bit package)

Rename the following files:

  • mvg.so to mvg.so.bak
  • msl.so to msl.so.bak
  • label.so to label.so.bak

CVSS / CWE

CVSS 2.0 · 4.3
AV:N/AC:M/Au:N/C:N/I:P/A:N

CWE-352 · Cross-Site Request Forgery (CSRF)