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カテゴリ
CVE-2022-39200

Signature checks not applied to some retrieved missing events

概要

Signature checks not applied to some retrieved missing events

原文の説明

取得元が公開している説明をそのまま載せています (多くは英語)。

Dendrite is a Matrix homeserver written in Go. In affected versions events retrieved from a remote homeserver using the /get_missing_events path did not have their signatures verified correctly. This could potentially allow a remote homeserver to provide invalid/modified events to Dendrite via this endpoint. Note that this does not apply to events retrieved through other endpoints (e.g. /event, /state) as they have been correctly verified. Homeservers that have federation disabled are not vulnerable. The problem has been fixed in Dendrite 0.9.8. Users are advised to upgrade. There are no known workarounds for this issue.

出典: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV

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