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GHSA-g85r-6x2q-45w7

SixLabors.ImageSharp vulnerable to Memory Allocation with Excessive Size Value

Source: GitHub Advisory Database (reviewed) Moderate CVE-2024-32035

Packages

EcosystemPackageAffectedFixed in
NuGet SixLabors.ImageSharp < 2.1.8 2.1.8
NuGet SixLabors.ImageSharp >= 3.0.0, < 3.1.4 3.1.4

Details

As written in the advisory (Markdown source, shown as plain text).

### Impact A vulnerability discovered in the ImageSharp library, where the processing of specially crafted files can lead to excessive memory usage in image decoders. The vulnerability is triggered when ImageSharp attempts to process image files that are designed to exploit this flaw. This flaw can be exploited to cause a denial of service (DoS) by depleting process memory, thereby affecting applications and services that rely on ImageSharp for image processing tasks. Users and administrators are advised to update to the latest version of ImageSharp that addresses this vulnerability to mitigate the risk of exploitation. ### Patches The problem has been patched. All users are advised to upgrade to v3.1.4 or v2.1.8. ### Workarounds Before calling `Image.Decode(Async)`, use `Image.Identify` to determine the image dimensions in order to enforce a limit. ### References - ImageSharp: [Security Considerations](https://docs.sixlabors.com/articles/imagesharp/security.html) - ImageSharp.Web: [Securing Processing Commands](https://docs.sixlabors.com/articles/imagesharp.web/processingcommands.html#securing-processing-commands)

References

External links from the advisory. They lead to third-party sites.