CVE-2021-42075
Quick assessment
Affected
n/a n/a
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Barrier是一种模仿 Kvm 切换器功能的软件。 Barrier 存在安全漏洞，该漏洞源于在 2.3.4 之前的 Barrier 中发现了一个问题。，屏障组件（又名屏障的服务器端实现）无法正确关闭已建立 TCP 连接的文件描述符。攻击者可利用该漏洞导致服务器进程中的文件描述符耗尽，从而导致拒绝服务。
Possible ATT&CK Techniques 1 AI
T1499.002 · Service Exhaustion Flood
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I. Basic Information for CVE-2021-42075
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An issue was discovered in Barrier before 2.3.4. The barriers component (aka the server-side implementation of Barrier) does not correctly close file descriptors for established TCP connections. An unauthenticated remote attacker can thus cause file descriptor exhaustion in the server process, leading to denial of service.
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
Barrier 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Barrier是一种模仿 Kvm 切换器功能的软件。 Barrier 存在安全漏洞，该漏洞源于在 2.3.4 之前的 Barrier 中发现了一个问题。，屏障组件（又名屏障的服务器端实现）无法正确关闭已建立 TCP 连接的文件描述符。攻击者可利用该漏洞导致服务器进程中的文件描述符耗尽，从而导致拒绝服务。
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 | - |
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II. Public POCs for CVE-2021-42075
| # | POC Description | Source Link | Shenlong Link |
|---|
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Mailing List Discussions for CVE-2021-42075 (1)
Other References for CVE-2021-42075 (1)
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https://github.com/debauchee/barrier/releases/tag/v2.3.4 x_refsource_MISC
Same Patch Batch · n/a · 2021-11-08 · 35 CVEs total
| CVE-2021-34684 | 9.8 CRITICAL | Hitachi Vantara Pentaho SQL注入漏洞 |
| CVE-2021-31599 | 8.8 HIGH | Hitachi Vantara Pentaho 代码问题漏洞 |
| CVE-2021-31601 | 7.1 HIGH | Hitachi Vantara Pentaho 安全漏洞 |
| CVE-2021-31602 | 5.3 MEDIUM | Hitachi Vantara Pentaho 授权问题漏洞 |
| CVE-2021-31600 | 4.3 MEDIUM | Hitachi Vantara Pentaho 访问控制错误漏洞 |
| CVE-2021-34685 | 2.7 LOW | Hitachi Vantara Pentaho和Hitachi Vantara Pentaho Business Analytics 代码问题漏洞 |
| CVE-2021-42371 | LPAR2RRD 安全漏洞 | |
| CVE-2021-42370 | lpar2rrd 安全漏洞 | |
| CVE-2021-42372 | LPAR2RRD 操作系统命令注入漏洞 | |
| CVE-2021-42078 | PHP Event Calendar 跨站脚本漏洞 | |
| CVE-2021-42077 | PHP Event Calendar SQL注入漏洞 | |
| CVE-2021-42076 | Barrier 缓冲区错误漏洞 | |
| CVE-2021-42074 | Barrier 资源管理错误漏洞 | |
| CVE-2021-42072 | Barrier 授权问题漏洞 | |
| CVE-2021-41771 | Google Go 缓冲区错误漏洞 | |
| CVE-2021-41772 | Google Golang 输入验证错误漏洞 | |
| CVE-2021-42073 | Barrier 授权问题漏洞 | |
| CVE-2021-41733 | Oppia 输入验证错误漏洞 | |
| CVE-2021-40261 | CASAP Automated Enrollment 跨站脚本漏洞 | |
| CVE-2021-40260 | SourceCodester Tailor Management 跨站脚本漏洞 |
Showing top 20 of 35 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
V. Comments for CVE-2021-42075
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