Improper Authorization Affecting matrix-synapse package, versions <1.93.0-1
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Test your applications- Snyk ID SNYK-DEBIANUNSTABLE-MATRIXSYNAPSE-5922062
- published 28 Sep 2023
- disclosed 27 Sep 2023
Introduced: 27 Sep 2023
CVE-2023-42453 Open this link in a new tabHow to fix?
Upgrade Debian:unstable matrix-synapse to version 1.93.0-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream matrix-synapse package and not the matrix-synapse package as distributed by Debian.
See How to fix? for Debian:unstable relevant fixed versions and status.
Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. Users were able to forge read receipts for any event (if they knew the room ID and event ID). Note that the users were not able to view the events, but simply mark it as read. This could be confusing as clients will show the event as read by the user, even if they are not in the room. This issue has been patched in version 1.93.0. Users are advised to upgrade. There are no known workarounds for this issue.
References
- https://security-tracker.debian.org/tracker/CVE-2023-42453
- https://github.com/matrix-org/synapse/pull/16327
- https://github.com/matrix-org/synapse/security/advisories/GHSA-7565-cq32-vx2x
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2AFB2Y3S2VCPCN5P2XCZTG24MBMZ7DM4/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/65QPC55I4D27HIZP7H2NQ34EOXHPP4AO/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/N6P4QULVUE254WI7XF2LWWOGHCYVFXFY/
- https://security.gentoo.org/glsa/202401-12