ALT-PU-2021-2791

ALT-PU-2021-2904

ALT-PU-2021-2904: package `element-desktop` update to version 1.8.5-alt1

ALT-PU-2021-2903

ALT-PU-2021-2903: package `element-web` update to version 1.8.5-alt1

ALT-PU-2021-2792

ALT-PU-2021-2792: package `element-desktop` update to version 1.8.4-alt1

CVE-2021-40824

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.

CVE-2021-40823

A logic error in the room key sharing functionality of matrix-js-sdk (aka Matrix Javascript SDK) before 12.4.1 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 homeserver to decrypt end-to-end encrypted messages sent by affected clients.