5.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
0.001 Low
EPSS
Percentile
40.1%
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.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 20.04 | noarch | node-matrix-js-sdk | < any | UNKNOWN |
ubuntu | 22.04 | noarch | node-matrix-js-sdk | < any | UNKNOWN |
ubuntu | 23.10 | noarch | node-matrix-js-sdk | < any | UNKNOWN |
ubuntu | 24.04 | noarch | node-matrix-js-sdk | < any | UNKNOWN |
github.com/matrix-org/matrix-js-sdk/releases/tag/v24.1.0
github.com/matrix-org/matrix-js-sdk/security/advisories/GHSA-6g67-q39g-r79q
github.com/matrix-org/matrix-spec-proposals/pull/3401
launchpad.net/bugs/cve/CVE-2023-29529
nvd.nist.gov/vuln/detail/CVE-2023-29529
security-tracker.debian.org/tracker/CVE-2023-29529
www.cve.org/CVERecord?id=CVE-2023-29529