CVE Details
Basic Information
| Title | ImageSharp Triggers an Infinite Loop in its GIF Decoder When Skipping Malformed Comment Extension Blocks |
|---|---|
| Type | cve |
| Published | 2025-07-30T19:55:16.248Z |
| Modified | 2025-07-30T19:59:35.532Z |
Product Information
| Vendor | SixLabors |
|---|---|
| Product | ImageSharp |
| Version | < 2.1.11 |
CVSS Information
| Base Score | 5.3 (MEDIUM) |
|---|---|
| Attack Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
Affected Products
- SixLabors ImageSharp < 2.1.11
- SixLabors ImageSharp >= 3.0.0, < 3.1.11
Additional Information
| CWE List | CWE-400, CWE-770 |
|---|---|
| Source | GitHub_M |
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.
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