A logic error in the room key sharing functionality of Element Android before 1.2.2 and matrix-android-sdk2 (aka Matrix SDK for Android) before 1.2.2 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 attacker to decrypt end-to-end encrypted messages sent by affected clients.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2021-09-13T18:49:28

Updated: 2024-08-04T02:51:07.032Z

Reserved: 2021-09-09T00:00:00

Link: CVE-2021-40824

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-09-13T19:15:19.340

Modified: 2024-11-21T06:24:50.803

Link: CVE-2021-40824

cve-icon Redhat

No data.