ImageMagick: Stack buffer overflow in FTXT reader via oversized integer fieldGHSA-72hf-fj62-w6j4
HIGHFix: ImageMagick/ImageMagick@9afe96cGHSA-72hf-fj62-w6j4 is a high-severity (CVSS 7.4) CWE-121 vulnerability in Magick.NET-Q16-AnyCPU. A fix is available for Magick.NET-Q16-AnyCPU — see the affected versions and patch details below.
Exploitation Status
No confirmed exploitation observed yet
- CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.
Exploitation and automatability from CISA’s SSVC triage for GHSA-72hf-fj62-w6j4.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
Where this sits among everything scored
Real-World Exposure
Magick.NET-Q16-AnyCPU.NETMagick.NET-Q16-HDRI-AnyCPU.NETMagick.NET-Q16-HDRI-OpenMP-arm64.NETMagick.NET-Q16-HDRI-OpenMP-x64.NETMagick.NET-Q16-HDRI-arm64.NETMagick.NET-Q16-HDRI-x64.NETMagick.NET-Q16-HDRI-x86.NETMagick.NET-Q16-OpenMP-arm64+10 moreReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects NuGet packages — download data is not available via public APIs for these ecosystems.
Description
Summary
A stack-based buffer overflow exists in the ImageMagick FTXT image reader. A crafted FTXT file can cause out-of-bounds writes on the stack, leading to a crash.
=================================================================
==3537074==ERROR: AddressSanitizer: stack-buffer-overflow on address 0x7ffee4850ef0 at pc 0x5607c408fb33 bp 0x7ffee484fe50 sp 0x7ffee484fe40
WRITE of size 1 at 0x7ffee4850ef0 thread T0
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| .NETNuGet | Magick.NET-Q16-AnyCPU | all versions | 14.10.3dotnet add package Magick.NET-Q16-AnyCPU --version 14.10.3 |
| .NETNuGet | Magick.NET-Q16-HDRI-AnyCPU | all versions | 14.10.3dotnet add package Magick.NET-Q16-HDRI-AnyCPU --version 14.10.3 |
| .NETNuGet | Magick.NET-Q16-HDRI-OpenMP-arm64 | all versions | 14.10.3dotnet add package Magick.NET-Q16-HDRI-OpenMP-arm64 --version 14.10.3 |
| .NETNuGet | Magick.NET-Q16-HDRI-OpenMP-x64 | all versions | 14.10.3dotnet add package Magick.NET-Q16-HDRI-OpenMP-x64 --version 14.10.3 |
| .NETNuGet | Magick.NET-Q16-HDRI-arm64 | all versions | 14.10.3dotnet add package Magick.NET-Q16-HDRI-arm64 --version 14.10.3 |
| .NETNuGet | Magick.NET-Q16-HDRI-x64 | all versions | 14.10.3dotnet add package Magick.NET-Q16-HDRI-x64 --version 14.10.3 |
Affected Products
imagemagickimagemagickDetection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for Magick.NET-Q16-AnyCPU, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update Magick.NET-Q16-AnyCPU to 14.10.3 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-72hf-fj62-w6j4 is resolved across your whole dependency graph.
Workarounds
Stop feeding it untrusted input: reject or quarantine files and payloads from unverified sources until you can upgrade, restrict accepted formats to the ones you actually need, and run the parsing or decoding step in a least-privileged sandbox or short-lived worker so a crash or corrupted read cannot reach the rest of the process.
Fixing This On Your OS
If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.
This MODERATE impact flaw in ImageMagick allows a remote attacker to cause a denial of service by providing a specially crafted FTXT file. The vulnerability, a stack-based buffer overflow in the FTXT image reader, can lead to out-of-bounds writes and application crashes. This affects ImageMagick as shipped in Red Hat…
To mitigate this issue, avoid processing untrusted FTXT image files with ImageMagick. If ImageMagick must process untrusted input, consider running the application in a sandboxed environment to limit potential impact.Source: Red Hat security advisory for GHSA-72hf-fj62-w6j4 (CC BY 4.0)
Frequently Asked Questions
Is GHSA-72hf-fj62-w6j4 in your dependencies?
Find it across NuGet, including transitive dependencies.