CVE-2023-0361
gnutls28 - security update
7.4
HIGH
CVSS 3.1
EPSS 1.4%
描述
A timing side-channel in the handling of RSA ClientKeyExchange messages was discovered in GnuTLS. This side-channel can be sufficient to recover the key encrypted in the RSA ciphertext across a network in a Bleichenbacher style attack. To achieve a successful decryption the attacker would need to send a large amount of specially crafted messages to the vulnerable server. By recovering the secret from the ClientKeyExchange message, the attacker would be able to decrypt the application data exchanged over that connection.
如何修補 CVE-2023-0361
要修補 CVE-2023-0361,請將受影響套件升級到下列已修補版本。
- —升級至 3.7.1-r2 或更新版本
- —升級至 3.7.1-5+deb11u3 或更新版本
- —升級至 3.6.7-4+deb10u10 或更新版本
- —升級至 3.7.1-5+deb11u3 或更新版本
CVE-2023-0361 正在被利用嗎?
低 — EPSS 為 1.4%,目前沒有觀察到大規模利用活動。
受影響套件(4)
- from 0, < 3.7.1-r2
- from 0, < 3.7.1-5+deb11u3
- from 0, < 3.6.7-4+deb10u10
- from 0, < 3.7.1-5+deb11u3
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.4 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N |