CVE-2023-29529 – matrix-js-sdk

Package

Manager: npm
Name: matrix-js-sdk
Vulnerable Version: >=0 <24.1.0

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N

EPSS: 0.00181 pctl0.40028

Details

matrix-js-sdk vulnerable to invisible eavesdropping in group calls ### Impact An attacker present in a room where an [MSC3401](https://github.com/matrix-org/matrix-spec-proposals/pull/3401) group call is taking place can eavesdrop on the video and audio of participants using matrix-js-sdk, without their knowledge. To affected matrix-js-sdk users, the attacker will not appear to be participating in the call. This attack is possible because matrix-js-sdk's group call implementation accepts incoming direct calls from other users, even if they have not yet declared intent to participate in the group call, as a means of resolving a race condition in call setup. Affected versions do not restrict access to the user's outbound media in this case. Legacy 1:1 calls are unaffected. ### Workarounds Users may hold group calls in private rooms where only the exact users who are expected to participate in the call are present.

Metadata

Created: 2023-04-14T16:14:17Z
Modified: 2023-04-25T16:35:38Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/04/GHSA-6g67-q39g-r79q/GHSA-6g67-q39g-r79q.json
CWE IDs: ["CWE-862"]
Alternative ID: GHSA-6g67-q39g-r79q
Finding: F039
Auto approve: 1