CVE-2019-12290
7.5
HIGH
CVSS 3.1
EPSS 2.8%
描述
GNU libidn2 before 2.2.0 fails to perform the roundtrip checks specified in RFC3490 Section 4.2 when converting A-labels to U-labels. This makes it possible in some circumstances for one domain to impersonate another. By creating a malicious domain that matches a target domain except for the inclusion of certain punycoded Unicode characters (that would be discarded when converted first to a Unicode label and then back to an ASCII label), arbitrary domains can be impersonated.
如何修補 CVE-2019-12290
要修補 CVE-2019-12290,請將受影響套件升級到下列已修補版本。
- —升級至 2.2.0-r0 或更新版本
- —升級至 2.2.0-1 或更新版本
CVE-2019-12290 正在被利用嗎?
低 — EPSS 為 2.8%,目前沒有觀察到大規模利用活動。
受影響套件(2)
- from 0, < 2.2.0-r0
- from 0, < 2.2.0-1
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |