CVE-2021-20209
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I. Basic Information for CVE-2021-20209
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
A memory leak vulnerability was found in Privoxy before 3.0.29 in the show-status CGI handler when no action files are configured.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
在移除最后引用时对内存的释放不恰当(内存泄露)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Privoxy 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Privoxy是美国Privoxy团队的一款不进行网页缓存且自带过滤功能的代理服务器。它具有高级过滤功能，可增强隐私，修改网页数据和HTTP标头，控制访问以及删除广告和其他令人讨厌的Internet垃圾。Privoxy具有灵活的配置，可以根据个人需要进行定制。它适用于独立系统和多用户网络。 Privoxy 存在安全漏洞，该漏洞源于当未配置任何操作文件时，show-status CGI 处理程序中发现了内存泄漏漏洞。
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 |
|---|---|---|---|---|
| - | privoxy | before 3.0.29 | - |
II. Public POCs for CVE-2021-20209
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2021-20209
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- https://www.privoxy.org/3.0.29/user-manual/whatsnew.htmlx_refsource_MISC
- https://bugzilla.redhat.com/show_bug.cgi?id=1928726x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2021-20209
Same Patch Batch · n/a · 2021-05-25 · 45 CVEs total
| CVE-2021-30194 | 3S-Smart Software Solutions CODESYS V2 Web-Server 缓冲区错误漏洞 | |
| CVE-2021-30191 | 3S-Smart Software Solutions CODESYS V2 Web-Server 安全漏洞 | |
| CVE-2021-30192 | 3S-Smart Software Solutions CODESYS V2 Web-Server 安全漏洞 | |
| CVE-2021-30190 | CODESYS V2 Web-Server 访问控制错误漏洞 | |
| CVE-2021-20096 | OpenOversight 跨站请求伪造漏洞 | |
| CVE-2020-9452 | Acronis True Image 后置链接漏洞 | |
| CVE-2020-9450 | Acronis True Image 安全漏洞 | |
| CVE-2020-9451 | Acronis True Image 安全漏洞 | |
| CVE-2021-33574 | GNU C Library 资源管理错误漏洞 | |
| CVE-2021-30187 | 3S-Smart Software Solutions CODESYS Control runtime system 操作系统命令注入漏洞 | |
| CVE-2021-30193 | 3S-Smart Software Solutions CODESYS V2 Web-Server 缓冲区错误漏洞 | |
| CVE-2021-30186 | 3S-Smart Software Solutions CODESYS Control runtime system 缓冲区错误漏洞 | |
| CVE-2021-30188 | 3S-Smart Software Solutions CODESYS Control runtime system 缓冲区错误漏洞 | |
| CVE-2021-30195 | 3S-Smart Software Solutions CODESYS V2 Web-Server 缓冲区错误漏洞 | |
| CVE-2021-29201 | 多款Hewlett Packard Enterprise产品跨站脚本漏洞 | |
| CVE-2021-29202 | 多款Hewlett Packard Enterprise产品安全漏洞 | |
| CVE-2021-29204 | 多款Hewlett Packard Enterprise产品跨站脚本漏洞 | |
| CVE-2021-29205 | 多款Hewlett Packard Enterprise产品跨站脚本漏洞 | |
| CVE-2021-27821 | OpenWrt LuCI 跨站脚本漏洞 | |
| CVE-2021-33425 | OpenWrt LuCI Web接口跨站脚本漏洞 |
Showing top 20 of 45 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
Same weakness: CWE-401
- CVE-2026-43506
Prosody 安全漏洞 - CVE-2026-7379
Missing Release of Memory after Effective Lifetime in Wiresh - CVE-2026-40336
libgphoto2 has memory leak in ptp_unpack_Sony_DPD() secondar - CVE-2026-33775
Junos OS: MX Series: Mismatch between configured and receive - CVE-2026-33782
Junos OS: MX Series: In specific DHCPv6 scenarios jdhcpd mem
V. Comments for CVE-2021-20209
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