CVE-2018-16643

Name: CVE-2018-16643
Creator: NVD / NIST
Published: 2018-09-06T22:29:01.023+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 3.08%

Last modified Jun 17, 2026

CVE-2018-16643 is a vulnerability of currently unknown severity. The functions ReadDCMImage in coders/dcm.c, ReadPWPImage in coders/pwp.c, ReadCALSImage in coders/cals.c, and ReadPICTImage in coders/pict.c in ImageMagick 7.0.8-4 do not check the return value of the fputc function, which allows remote attackers to cause a denial of service via a crafted image file.. EPSS estimates a 3.08% chance of exploitation in the next 30 days.

Description

The functions ReadDCMImage in coders/dcm.c, ReadPWPImage in coders/pwp.c, ReadCALSImage in coders/cals.c, and ReadPICTImage in coders/pict.c in ImageMagick 7.0.8-4 do not check the return value of the fputc function, which allows remote attackers to cause a denial of service via a crafted image file.

Metrics

EPSS Probability

3.08%

86.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-252

Affected Software

Vendor	Product	Versions
Imagemagick	Imagemagick	7.0.8-4
Canonical	Ubuntu Linux	14.04
Canonical	Ubuntu Linux	16.04
Canonical	Ubuntu Linux	18.04
Debian	Debian Linux	8.0

References

https://github.com/ImageMagick/ImageMagick/commit/6b6bff054d569a77973f2140c0e86366e6168a6cPatch, Third Party Advisory
https://github.com/ImageMagick/ImageMagick/issues/1199Issue Tracking, Patch, 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.html
https://usn.ubuntu.com/3785-1/Third Party Advisory
https://github.com/ImageMagick/ImageMagick/commit/6b6bff054d569a77973f2140c0e86366e6168a6cPatch, Third Party Advisory
https://github.com/ImageMagick/ImageMagick/issues/1199Issue Tracking, Patch, 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.html
https://usn.ubuntu.com/3785-1/Third Party Advisory

Timeline

Published: Sep 6, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-16643?

How severe is CVE-2018-16643?

Severity scoring for CVE-2018-16643 is pending analysis. The EPSS model estimates a 3.08% probability of exploitation in the next 30 days.

How do I fix CVE-2018-16643?

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-2018-16643?

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

Scan your code now

Source: NVD / NIST