CVE-2021-33620
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I. Basic Information for CVE-2021-33620
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
Squid before 4.15 and 5.x before 5.0.6 allows remote servers to cause a denial of service (affecting availability to all clients) via an HTTP response. The issue trigger is a header that can be expected to exist in HTTP traffic without any malicious intent by the server.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
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 4.15 之前版本和5.x版本至5.0.6版本存在安全漏洞，该漏洞允许远程服务器通过HTTP响应导致拒绝服务。
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-2021-33620
| # | POC Description | Source Link | Shenlong Link |
|---|
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No public POC found.
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- http://seclists.org/fulldisclosure/2023/Oct/14mailing-list
- [SECURITY] [DLA 2685-1] squid3 security updatemailing-list
- https://nvd.nist.gov/vuln/detail/CVE-2021-33620
Same Patch Batch · n/a · 2021-05-28 · 43 CVEs total
| CVE-2021-20195 | Red Hat Keycloak 输入验证错误漏洞 | |
| CVE-2010-3843 | Ettercap 缓冲区错误漏洞 | |
| CVE-2020-35504 | QEMU 代码问题漏洞 | |
| CVE-2020-35505 | QEMU 代码问题漏洞 | |
| CVE-2020-27847 | Dex Idp Dex 安全漏洞 | |
| CVE-2020-25710 | OpenLDAP 安全漏洞 | |
| CVE-2021-3514 | 389-ds-base 代码问题漏洞 | |
| CVE-2021-33587 | css-what 安全漏洞 | |
| CVE-2021-33623 | trim-newlines 资源管理错误漏洞 | |
| CVE-2020-25715 | pki-core 跨站脚本漏洞 | |
| CVE-2020-35506 | QEMU 资源管理错误漏洞 | |
| CVE-2021-20201 | spice 安全漏洞 | |
| CVE-2021-20236 | ZeroMQ 缓冲区错误漏洞 | |
| CVE-2021-20237 | ZeroMQ 资源管理错误漏洞 | |
| CVE-2021-20239 | Linux kernel 缓冲区错误漏洞 | |
| CVE-2021-20240 | gdk-pixbuf 数字错误漏洞 | |
| CVE-2021-20278 | Kiali 授权问题漏洞 | |
| CVE-2021-20292 | Nouveau 资源管理错误漏洞 | |
| CVE-2021-27032 | Autodesk Licensing Services 访问控制错误漏洞 | |
| CVE-2021-21734 | ZTE PON MDU 加密问题漏洞 |
Showing top 20 of 43 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same vendor: n/a
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Open5GS SMF ogs_nas_parse_qos_rules denial of service - CVE-2026-8269
Open5GS SMF smf_nsmf_handle_create_sm_context denial of serv - CVE-2026-8268
Open5GS SMF OpenAPI_list_create denial of service
V. Comments for CVE-2021-33620
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