CVE-2018-6405

Name: CVE-2018-6405
Creator: NVD / NIST
Published: 2018-01-30T21:29:00.353+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 1.68%

Last modified Jun 17, 2026

CVE-2018-6405 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. In the ReadDCMImage function in coders/dcm.c in ImageMagick before 7.0.7-23, each redmap, greenmap, and bluemap variable can be overwritten by a new pointer. The previous pointer is lost, which leads to a memory leak. EPSS estimates a 1.68% chance of exploitation in the next 30 days.

Description

In the ReadDCMImage function in coders/dcm.c in ImageMagick before 7.0.7-23, each redmap, greenmap, and bluemap variable can be overwritten by a new pointer. The previous pointer is lost, which leads to a memory leak. This allows remote attackers to cause a denial of service.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

1.68%

73.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-772

Affected Software

Vendor	Product	Versions
Imagemagick	Imagemagick	< 6.9.9-35
Imagemagick	Imagemagick	>= 7.0.0-0, < 7.0.7-23
Canonical	Ubuntu Linux	14.04
Canonical	Ubuntu Linux	16.04
Canonical	Ubuntu Linux	17.10
Canonical	Ubuntu Linux	18.04

References

https://github.com/ImageMagick/ImageMagick/issues/964Exploit, Issue Tracking, Patch, Third Party Advisory
https://usn.ubuntu.com/3681-1/Third Party Advisory
https://github.com/ImageMagick/ImageMagick/issues/964Exploit, Issue Tracking, Patch, Third Party Advisory
https://usn.ubuntu.com/3681-1/Third Party Advisory

Timeline

Published: Jan 30, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-6405?

How severe is CVE-2018-6405?

CVE-2018-6405 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 1.68% probability of exploitation in the next 30 days.

How do I fix CVE-2018-6405?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-6405?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST