CVE-2021-40529
5.9
MEDIUM
CVSS 3.1
EPSS 1.5%
描述
The ElGamal implementation in Botan through 2.18.1, as used in Thunderbird and other products, 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.
如何修補 CVE-2021-40529
要修補 CVE-2021-40529,請將受影響套件升級到下列已修補版本。
- —升級至 2.17.3-r3 或更新版本
- —未列出修補版本
CVE-2021-40529 正在被利用嗎?
低 — EPSS 為 1.5%,目前沒有觀察到大規模利用活動。
受影響套件(2)
- from 0, < 2.17.3-r3
- from 0
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |