CVE-2020-1968
openssl1.0 - security update
描述
The Raccoon attack exploits a flaw in the TLS specification which can lead to an attacker being able to compute the pre-master secret in connections which have used a Diffie-Hellman (DH) based ciphersuite. In such a case this would result in the attacker being able to eavesdrop on all encrypted communications sent over that TLS connection. The attack can only be exploited if an implementation re-uses a DH secret across multiple TLS connections. Note that this issue only impacts DH ciphersuites and not ECDH ciphersuites. This issue affects OpenSSL 1.0.2 which is out of support and no longer receiving public updates. OpenSSL 1.1.1 is not vulnerable to this issue. Fixed in OpenSSL 1.0.2w (Affected 1.0.2-1.0.2v).
如何修補 CVE-2020-1968
要修補 CVE-2020-1968,請將受影響套件升級到下列已修補版本。
- —升級至 1.1.0c-1 或更新版本
- —升級至 1.0.2u-1~deb9u2 或更新版本
CVE-2020-1968 正在被利用嗎?
低 — EPSS 為 4.8%,目前沒有觀察到大規模利用活動。
受影響套件(2)
- from 0, < 1.1.0c-1
- from 0, < 1.0.2u-1~deb9u2
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | LOW3.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N |