What’s Vulnerable › Vulnerabilities

CVE-2018-11251

• Severity: medium (CVSS 6.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2018-05-18 · updated 2026-06-17
• Weakness: CWE-125

Description

In ImageMagick 7.0.7-23 Q16 x86_64 2018-01-24, there is a heap-based buffer over-read in ReadSUNImage in coders/sun.c, which allows attackers to cause a denial of service (application crash in SetGrayscaleImage in MagickCore/quantize.c) via a crafted SUN image file.

Affected products

• ImageMagick: from 7.0.7-16 before 7.0.7-21; 7.0.7-23 — fixed in 7.0.7-21

How to fix

Upgrade to a fixed version: ImageMagick 7.0.7-21. Check the vendor advisory for mitigations.

References

• https://github.com/ImageMagick/ImageMagick/issues/956
• https://lists.debian.org/debian-lts-announce/2018/05/msg00012.html
• https://lists.debian.org/debian-lts-announce/2018/06/msg00004.html
• https://usn.ubuntu.com/3681-1/
• https://www.debian.org/security/2018/dsa-4245
• https://github.com/ImageMagick/ImageMagick/issues/956
• https://lists.debian.org/debian-lts-announce/2018/05/msg00012.html
• https://lists.debian.org/debian-lts-announce/2018/06/msg00004.html
• https://usn.ubuntu.com/3681-1/
• https://www.debian.org/security/2018/dsa-4245

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