Уязвимость CVE-2021-40823: Информация
Описание
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.
Важность: MEDIUM (5,9) Вектор: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Исправленные пакеты
Имя пакета | Ветка | Исправлено в версии | Версия в репозитории | Errata ID | № Задания | Состояние |
|---|---|---|---|---|---|---|
| element-desktop | p9 | 1.8.5-alt1 | 1.8.5-alt1 | ALT-PU-2021-2970-1 | 285432 | Исправлено |
| element-web | sisyphus | 1.8.4-alt1 | 1.11.25-alt1 | ALT-PU-2021-2791-1 | 285172 | Исправлено |
| element-web | p9 | 1.8.5-alt1 | 1.8.5-alt1 | ALT-PU-2021-2969-1 | 285432 | Исправлено |
Ссылки на рекомендации, решения и инструменты
Ссылка | Ресурс |
|---|---|
| https://github.com/matrix-org/matrix-js-sdk/releases/tag/v12.4.1 |
|
| https://matrix.org/blog/2021/09/13/vulnerability-disclosure-key-sharing |
|