Уязвимость CVE-2021-40528: Информация
Описание
The ElGamal implementation in Libgcrypt before 1.9.4 allows plaintext recovery because, during interaction between two cryptographic libraries, a certain dangerous combination of the prime defined by the receiver's public key, the generator defined by the receiver's public key, and the sender's ephemeral exponents can lead to a cross-configuration attack against OpenPGP.
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 |
|---|---|---|---|---|---|---|
| libgcrypt | sisyphus | 1.9.4-alt1 | 1.10.2-alt2 | ALT-PU-2021-3312-1 | 290321 | Исправлено |
| libgcrypt | sisyphus_e2k | 1.9.4-alt1 | 1.10.2-alt2 | ALT-PU-2022-3708-1 | - | Исправлено |
| libgcrypt | p11 | 1.9.4-alt1 | 1.10.2-alt2 | ALT-PU-2021-3312-1 | 290321 | Исправлено |
Ссылки на рекомендации, решения и инструменты
Ссылка | Ресурс |
|---|---|
| https://ibm.github.io/system-security-research-updates/2021/07/20/insecurity-elgamal-pt1 |
|
| https://ibm.github.io/system-security-research-updates/2021/09/06/insecurity-elgamal-pt2 |
|
| https://eprint.iacr.org/2021/923 |
|
| GLSA-202210-13 |
|
| https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=3462280f2e23e16adf3ed5176e0f2413d8861320 |