CVE-2020-25667 Memory corruption in ImageMagick
A crafted TIFF file triggers an out-of-bounds read in ImageMagick, causing a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2020-25667?
CVE-2020-25667 is a medium-severity memory corruption vulnerability in Imagemagick Imagemagick, published on 8 Dec 2020. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
TIFFGetProfiles() in /coders/tiff.c calls strstr() which causes a large out-of-bounds read when it searches for `"dc:format=\"image/dng\"` within `profile` due to improper string handling, when a crafted input file is provided to ImageMagick. The patch uses a StringInfo type instead of a raw C string to remedy this. This could cause an impact to availability of the application. This flaw affects ImageMagick versions prior to 7.0.9-0.
Weakness: CWE-122
Which versions are affected by CVE-2020-25667?
It affects 1 product.
Products include Imagemagick Imagemagick.
How do I fix CVE-2020-25667?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2020-25667 being exploited?
There is no known exploitation of CVE-2020-25667 in the wild and no public exploit code.
Other vulnerabilities in Imagemagick Imagemagick
Sources
Also known as GHSA-3hx9-jrq9-5mh9, JLSEC-2026-844.