What’s Vulnerable › Vulnerabilities

CVE-2018-16643

• Severity: medium (CVSS 6.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-09-06 · updated 2026-06-17
• Weakness: CWE-252

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.

Affected products

• Canonical Ubuntu Linux: 14.04, 16.04, 18.04
• Debian Linux: 8.0
• ImageMagick: 7.0.8-4

References

• https://github.com/ImageMagick/ImageMagick/commit/6b6bff054d569a77973f2140c0e86366e6168a6c
• https://github.com/ImageMagick/ImageMagick/issues/1199
• https://lists.debian.org/debian-lts-announce/2018/10/msg00002.html
• https://lists.debian.org/debian-lts-announce/2020/09/msg00007.html
• https://usn.ubuntu.com/3785-1/
• https://github.com/ImageMagick/ImageMagick/commit/6b6bff054d569a77973f2140c0e86366e6168a6c
• https://github.com/ImageMagick/ImageMagick/issues/1199
• https://lists.debian.org/debian-lts-announce/2018/10/msg00002.html
• https://lists.debian.org/debian-lts-announce/2020/09/msg00007.html
• https://usn.ubuntu.com/3785-1/

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