CVE-2021-42074
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同时为每个TCP会话发送Hello消息，从而导致Barrier组件(也就是Barrier的服务器端实现)的分段错误。
Possible ATT&CK Techniques 2 AI
T1499 · Endpoint Denial of Service T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-42074
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. An unauthenticated attacker can cause a segmentation fault in the barriers component (aka the server-side implementation of Barrier) by quickly opening and closing TCP connections while sending a Hello message for each TCP session.
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同时为每个TCP会话发送Hello消息，从而导致Barrier组件(也就是Barrier的服务器端实现)的分段错误。
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-2021-42074
| # | POC Description | Source Link | Shenlong Link |
|---|
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Mailing List Discussions for CVE-2021-42074 (1)
Other References for CVE-2021-42074 (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-2021-42075 | 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-2021-42074
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