CVE-2018-16749

Name: CVE-2018-16749
Creator: NVD / NIST
Published: 2018-09-09T15:29:00.22+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 2.29%

Last modified Jun 17, 2026

CVE-2018-16749 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. In ImageMagick 7.0.7-29 and earlier, a missing NULL check in ReadOneJNGImage in coders/png.c allows an attacker to cause a denial of service (WriteBlob assertion failure and application exit) via a crafted file.. EPSS estimates a 2.29% chance of exploitation in the next 30 days.

Description

In ImageMagick 7.0.7-29 and earlier, a missing NULL check in ReadOneJNGImage in coders/png.c allows an attacker to cause a denial of service (WriteBlob assertion failure and application exit) via a crafted file.

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

2.29%

81.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-476

Affected Software

Vendor	Product	Versions
Imagemagick	Imagemagick	< 6.9.9-42
Imagemagick	Imagemagick	>= 7.0.0-0, <= 7.0.7-29
Canonical	Ubuntu Linux	14.04
Canonical	Ubuntu Linux	16.04
Canonical	Ubuntu Linux	18.04
Debian	Debian Linux	8.0
Debian	Debian Linux	9.0

References

https://github.com/ImageMagick/ImageMagick/issues/1119Exploit, Issue Tracking, Patch, Third Party Advisory
https://github.com/ImageMagick/ImageMagick6/commit/1007b98f8795ad4bea6bc5f68a32d83e982fdae4Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/10/msg00002.htmlThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/09/msg00007.htmlMailing List, Third Party Advisory
https://usn.ubuntu.com/3785-1/Third Party Advisory
https://github.com/ImageMagick/ImageMagick/issues/1119Exploit, Issue Tracking, Patch, Third Party Advisory
https://github.com/ImageMagick/ImageMagick6/commit/1007b98f8795ad4bea6bc5f68a32d83e982fdae4Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/10/msg00002.htmlThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/09/msg00007.htmlMailing List, Third Party Advisory
https://usn.ubuntu.com/3785-1/Third Party Advisory

Timeline

Published: Sep 9, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-16749?

How severe is CVE-2018-16749?

CVE-2018-16749 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 2.29% probability of exploitation in the next 30 days.

How do I fix CVE-2018-16749?

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-2018-16749?

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

Scan your code now

Source: NVD / NIST