CVE-2020-26961
6.5
MEDIUM
CVSS 3.1
EPSS 0.27%
描述
When DNS over HTTPS is in use, it intentionally filters RFC1918 and related IP ranges from the responses as these do not make sense coming from a DoH resolver. However when an IPv4 address was mapped through IPv6, these addresses were erroneously let through, leading to a potential DNS Rebinding attack. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5.
如何修補 CVE-2020-26961
要修補 CVE-2020-26961,請將受影響套件升級到下列已修補版本。
- —升級至 78.5.0esr-1 或更新版本
- —升級至 1:78.5.0-1 或更新版本
CVE-2020-26961 正在被利用嗎?
低 — EPSS 為 0.3%,目前沒有觀察到大規模利用活動。
受影響套件(2)
- from 0, < 78.5.0esr-1
- from 0, < 1:78.5.0-1
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N |