SixLabors ImageSharp Has Infinite Loop in GIF Decoder When Skipping Malformed Comment Extension Blocks
### Impact 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. ### Patches The problem has been patched. All users are advised to upgrade to v3.1.11 or v2.1.11. ### Workarounds None.
beschreibt (1)
Zugehörige CVEs.
| ID | Schweregrad | ausnutzbar | ||
|---|---|---|---|---|
| CVE-2025-54575US | — | — | ||
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… | ||||
Referenzen
Externe Belege — Patches, Meldungen, Analysen.
- https://github.com/SixLabors/ImageSharpPACKAGE
- https://github.com/SixLabors/ImageSharp/commit/55e49262df9a057dff9b7807ed1b7bdb49187c3fWEB
- https://github.com/SixLabors/ImageSharp/commit/833f3ceec35af6b775950e06f03b934546cefbf6WEB
- https://github.com/SixLabors/ImageSharp/issues/2953WEB
- https://github.com/SixLabors/ImageSharp/security/advisories/GHSA-rxmq-m78w-7wmcWEB
- https://nvd.nist.gov/vuln/detail/CVE-2025-54575ADVISORY
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