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Improper Verification of Cryptographic Signature Affecting github.com/matrix-org/dendrite/roomserver/internal/input package, versions <0.9.8

0.0
high

Snyk CVSS

    Attack Complexity Low

    Threat Intelligence

    EPSS 0.06% (26th percentile)
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NVD
5.3 medium

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  • Snyk ID SNYK-GOLANG-GITHUBCOMMATRIXORGDENDRITEROOMSERVERINTERNALINPUT-3021518
  • published 13 Sep 2022
  • disclosed 13 Sep 2022
  • credit Tulir Asokan
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Introduced: 13 Sep 2022

CVE-2022-39200 Open this link in a new tab
CWE-347 Open this link in a new tab

How to fix?

Upgrade github.com/matrix-org/dendrite/roomserver/internal/input to version 0.9.8 or higher.

Overview

github.com/matrix-org/dendrite/roomserver/internal/input is a second-generation Matrix homeserver written in Go.

Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature of events retrieved from a remote homeserver using /get_missing_events endpoint.

Note: This vulnerability does not apply to events retrieved through other endpoints (e.g. /event, /state) as they have been correctly verified.

References