CVE-2020-25681
dnsmasq - security update
8.1
HIGH
CVSS 3.1
EPSS 81.2%
描述
A flaw was found in dnsmasq before version 2.83. A heap-based buffer overflow was discovered in the way RRSets are sorted before validating with DNSSEC data. An attacker on the network, who can forge DNS replies such as that they are accepted as valid, could use this flaw to cause a buffer overflow with arbitrary data in a heap memory segment, possibly executing code on the machine. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
如何修補 CVE-2020-25681
要修補 CVE-2020-25681,請將受影響套件升級到下列已修補版本。
- —升級至 2.83-r0 或更新版本
- —升級至 2.83-1 或更新版本
- —升級至 2.76-5+deb9u3 或更新版本
- —升級至 2.80-1+deb10u1 或更新版本
CVE-2020-25681 正在被利用嗎?
可能 — EPSS 為 81.2%,屬於高被利用機率區間,建議優先修補。
受影響套件(4)
- from 0, < 2.83-r0
- from 0, < 2.83-1
- from 0, < 2.76-5+deb9u3
- from 0, < 2.80-1+deb10u1
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |