Use of a Broken or Risky Cryptographic Algorithm Affecting node-matrix-js-sdk package, versions *


Severity

Recommended
low

Based on Debian security rating.

Threat Intelligence

EPSS
0.08% (38th percentile)

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  • Snyk IDSNYK-DEBIAN11-NODEMATRIXJSSDK-1584535
  • published14 Sept 2021
  • disclosed13 Sept 2021

Introduced: 13 Sep 2021

CVE-2021-40823  (opens in a new tab)
CWE-327  (opens in a new tab)

How to fix?

There is no fixed version for Debian:11 node-matrix-js-sdk.

NVD Description

Note: Versions mentioned in the description apply only to the upstream node-matrix-js-sdk package and not the node-matrix-js-sdk package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

A logic error in the room key sharing functionality of matrix-js-sdk (aka Matrix Javascript SDK) before 12.4.1 allows a malicious Matrix homeserver present in an encrypted room to steal room encryption keys (via crafted Matrix protocol messages) that were originally sent by affected Matrix clients participating in that room. This allows the homeserver to decrypt end-to-end encrypted messages sent by affected clients.

CVSS Scores

version 3.1