CVE-2021-3517
Nokogiri contains libxml Out-of-bounds Write vulnerability
8.6
HIGH
CVSS 3.1
EPSS 8.3%
描述
There is a flaw in the xml entity encoding functionality of libxml2 in versions before 2.9.11. An attacker who is able to supply a crafted file to be processed by an application linked with the affected functionality of libxml2 could trigger an out-of-bounds read. The most likely impact of this flaw is to application availability, with some potential impact to confidentiality and integrity if an attacker is able to use memory information to further exploit the application.
如何修補 CVE-2021-3517
要修補 CVE-2021-3517,請將受影響套件升級到下列已修補版本。
- —升級至 2.9.9-r5 或更新版本
- —升級至 2.9.10+dfsg-6.6 或更新版本
- —升級至 1.11.4 或更新版本
CVE-2021-3517 正在被利用嗎?
中等 — EPSS 為 8.3%,可持續追蹤但非最高優先。
受影響套件(3)
- from 0, < 2.9.9-r5
- from 0, < 2.9.10+dfsg-6.6
- from 0, < 1.11.4
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H |