matrix-js-sdk is the Matrix Client-Server SDK for JavaScript and TypeScript. An attacker present in a room where an MSC3401 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. This is fixed in matrix-js-sdk 24.1.0. As a workaround, users may hold group calls in private rooms where only the exact users who are expected to participate in the call are present.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - matrix-js-sdk is the Matrix Client-Server SDK for JavaScript and TypeScript. An attacker present in a room     where an MSC3401 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. This is fixed     in matrix-js-sdk 24.1.0. As a workaround, users may hold group calls in private rooms where only the exact     users who are expected to participate in the call are present. (CVE-2023-29529)

Note that Nessus relies on the presence of the package as reported by the vendor.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - matrix-js-sdk is the Matrix Client-Server SDK for JavaScript and TypeScript. An attacker present in a room
    where an MSC3401 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. This is fixed
    in matrix-js-sdk 24.1.0. As a workaround, users may hold group calls in private rooms where only the exact
    users who are expected to participate in the call are present. (CVE-2023-29529)

ID	Name	Product	Family	Severity
226609	Linux Distros Unpatched Vulnerability : CVE-2023-29529	Nessus	Misc.	medium
411424	SCA: security update for matrix-js-sdk (GHSA-6g67-q39g-r79q)	Tenable Cloud Security	SCA Checks	medium
411424	SCA: security update for matrix-js-sdk (GHSA-6g67-q39g-r79q)	Tenable Self-Hosted Container Security	SCA Checks	medium

Detections

Analytics

CVE-2023-29529

medium

Tenable Plugins

medium

medium

medium