Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2020-25681

Quick assessment

Affected
n/a dnsmasq
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Dnsmasq是一款使用C语言编写的轻量级DNS转发和DHCP、TFTP服务器。 Dnsmasq 存在缓冲区错误漏洞，该漏洞源于dnsmasq中的基于堆的缓冲区溢出，在未经请求的DNS响应中使用DNSSEC数据验证rrset之前，对rrset进行排序。

AI Predicted 7.5 Difficulty: Moderate EPSS 81.19% · P100
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2020-25681

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
堆缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
Dnsmasq 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Dnsmasq是一款使用C语言编写的轻量级DNS转发和DHCP、TFTP服务器。 Dnsmasq 存在缓冲区错误漏洞，该漏洞源于dnsmasq中的基于堆的缓冲区溢出，在未经请求的DNS响应中使用DNSSEC数据验证rrset之前，对rrset进行排序。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
- dnsmasq dnsmasq 2.83 -

II. Public POCs for CVE-2020-25681

# POC Description Source Link Shenlong Link
1 None https://github.com/nuliljj/kimocoder-CVE-2020-25681 POC Details
2 None https://github.com/nuliljj/CVE-2020-25681 POC Details
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2020-25681

请登录查看更多情报信息。

Vendor Advisories for CVE-2020-25681 (3)

Mailing List Discussions for CVE-2020-25681 (3)

Other References for CVE-2020-25681 (1)

Same Patch Batch · n/a · 2021-01-20 · 34 CVEs total

CVE-2020-28483 7.1 HIGH HTTP Response Splitting
CVE-2021-23326 6.3 MEDIUM Command Injection
CVE-2020-28452 6.3 MEDIUM Cross-site Request Forgery (CSRF)
CVE-2020-25385 Nagios Log Server 跨站脚本漏洞
CVE-2021-3110 Prestashop SQL注入漏洞
CVE-2021-3137 XWiki 跨站脚本漏洞
CVE-2020-27851 Rocketgenius Gravity Forms 跨站脚本漏洞
CVE-2020-27852 Rocketgenius Gravity Forms 跨站脚本漏洞
CVE-2020-27850 Rocketgenius Gravity Forms 跨站脚本漏洞
CVE-2020-13133 Tufin Securechange 跨站脚本漏洞
CVE-2020-13134 Tufin Securechange 跨站脚本漏洞
CVE-2020-14360 X.Org Server 缓冲区错误漏洞
CVE-2020-19364 OpenEMR 代码问题漏洞
CVE-2020-19363 Vtiger CRM 信息泄露漏洞
CVE-2020-19362 Vtiger CRM 跨站脚本漏洞
CVE-2020-19361 MedinTux 跨站脚本漏洞
CVE-2020-19360 FHEM 信息泄露漏洞
CVE-2020-25685 dnsmasq 加密问题漏洞
CVE-2020-35217 Eclipse Vertx-web 跨站请求伪造漏洞
CVE-2020-35239 CakePHP 跨站请求伪造漏洞

Showing top 20 of 34 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: dnsmasq
Same vendor: n/a
Same weakness: CWE-122

V. Comments for CVE-2020-25681

No comments yet

Leave a comment