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

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2021-31808

Quick assessment

Affected
n/a n/a
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Squid是一套代理服务器和Web缓存服务器软件。该软件提供缓存万维网、过滤流量、代理上网等功能。 Squid 存在输入验证错误漏洞。该漏洞源于程序执行HTTP Range请求时对用户提供的输入的验证不足，远程代理客户端可以通过代理服务器发送特制的HTTP请求并导致拒绝服务攻击。以下产品及版本存在该漏洞：Squid: 2.5, 2.5.6, 2.5.9, 2.5.stable1, 2.5.stable2, 2.5.stable3, 2.5.stable4, 2.5.stable5, 2.5.stable6

AI Predicted 7.5 Difficulty: Easy EPSS 5.49% · P92

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2021-31808

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to an input-validation bug, it is vulnerable to a Denial of Service attack (against all clients using the proxy). A client sends an HTTP Range request to trigger this.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Squid 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Squid是一套代理服务器和Web缓存服务器软件。该软件提供缓存万维网、过滤流量、代理上网等功能。 Squid 存在输入验证错误漏洞。该漏洞源于程序执行HTTP Range请求时对用户提供的输入的验证不足，远程代理客户端可以通过代理服务器发送特制的HTTP请求并导致拒绝服务攻击。以下产品及版本存在该漏洞：Squid: 2.5, 2.5.6, 2.5.9, 2.5.stable1, 2.5.stable2, 2.5.stable3, 2.5.stable4, 2.5.stable5, 2.5.stable6
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
- n/a n/a -

II. Public POCs for CVE-2021-31808

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2021-31808

请登录查看更多情报信息。

Vendor Advisories for CVE-2021-31808 (3)

Mailing List Discussions for CVE-2021-31808 (5)

Other References for CVE-2021-31808 (1)

Same Patch Batch · n/a · 2021-05-27 · 74 CVEs total

CVE-2020-22025 FFmpeg 缓冲区错误漏洞
CVE-2020-14329 Red Hat Ansible 信息泄露漏洞
CVE-2020-10688 Red Hat Resteasy 跨站脚本漏洞
CVE-2020-22033 FFmpeg 缓冲区错误漏洞
CVE-2020-22032 FFmpeg 缓冲区错误漏洞
CVE-2020-22016 FFmpeg 缓冲区错误漏洞
CVE-2020-22017 FFmpeg 缓冲区错误漏洞
CVE-2021-33394 Devellion Cubecart 授权问题漏洞
CVE-2020-22022 FFmpeg 缓冲区错误漏洞
CVE-2020-22023 FFmpeg 缓冲区错误漏洞
CVE-2020-10697 Red Hat Ansible 安全漏洞
CVE-2020-22027 FFmpeg 缓冲区错误漏洞
CVE-2020-22030 FFmpeg 缓冲区错误漏洞
CVE-2020-22029 FFmpeg 缓冲区错误漏洞
CVE-2020-22031 FFmpeg 缓冲区错误漏洞
CVE-2021-27490 Siemens Solid Edge 缓冲区错误漏洞
CVE-2021-27492 Siemens Solid Edge 代码问题漏洞
CVE-2021-27488 Siemens Solid Edge 缓冲区错误漏洞
CVE-2021-27496 Siemens Solid Edge 安全漏洞
CVE-2021-27494 Siemens Solid Edge 安全漏洞

Showing top 20 of 74 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: n/a
Same vendor: n/a

V. Comments for CVE-2021-31808

No comments yet

Leave a comment