Description
ImageSharp is a 2D graphics library. In versions below 2.1.11 and 3.0.0 through 3.1.10, a specially crafted GIF file containing a malformed comment extension block (with a missing block terminator) can cause the ImageSharp GIF decoder to enter an infinite loop while attempting to skip the block. This leads to a denial of service. Applications processing untrusted GIF input should upgrade to a patched version. This issue is fixed in versions 2.1.11 and 3.1.11.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| SixLabors | ImageSharp | < 2.1.11, >= 3.0.0, < 3.1.11 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| NuGet | SixLabors.ImageSharp | < 2.1.11 | 2.1.11 | GHSA-rxmq-m78w-7wmc |
| NuGet | SixLabors.ImageSharp | >= 3.0.0, < 3.1.11 | 3.1.11 | GHSA-rxmq-m78w-7wmc |
References
- https://github.com/SixLabors/ImageSharp/security/advisories/GHSA-rxmq-m78w-7wmc
- https://github.com/SixLabors/ImageSharp/issues/2953
- https://github.com/SixLabors/ImageSharp/commit/55e49262df9a057dff9b7807ed1b7bdb49187c3f
- https://github.com/SixLabors/ImageSharp/commit/833f3ceec35af6b775950e06f03b934546cefbf6