CVE-2021-31882
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I. Basic Information for CVE-2021-31882
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability has been identified in Capital Embedded AR Classic 431-422 (All versions), Capital Embedded AR Classic R20-11 (All versions < V2303). The DHCP client application does not validate the length of the Domain Name Server IP option(s) (0x06) when processing DHCP ACK packets. This may lead to Denial-of-Service conditions. (FSMD-2021-0011)
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
内存缓冲区边界内操作的限制不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Siemens Nucleus 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Siemens Nucleus是德国西门子（Siemens）公司的一个工控设备。提供一个工控设备。 Siemens Nucleus RTOS TCP/IP Stack 存在缓冲区错误漏洞，该漏洞源于DHCP 客户端应用程序在处理 DHCP ACK 数据包时不会验证域名服务器 IP 选项 (0x06) 的长度。这可能会导致拒绝服务条件。
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 |
|---|---|---|---|---|
| Siemens | Capital Embedded AR Classic 431-422 | 0 ~ * | - | |
| Siemens | Capital Embedded AR Classic R20-11 | 0 ~ V2303 | - |
II. Public POCs for CVE-2021-31882
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Siemens · 2021-11-09 · 25 CVEs total
| CVE-2021-40358 | 9.9 CRITICAL | Siemens SIMATIC PCS 7和SIMATIC WinCC 路径遍历漏洞 |
| CVE-2021-31346 | 8.2 HIGH | Siemens Nucleus 安全漏洞 |
| CVE-2021-40359 | 7.7 HIGH | Siemens SIMATIC PCS 7和SIMATIC WinCC 路径遍历漏洞 |
| CVE-2021-31345 | 7.5 HIGH | Siemens Nucleus 安全漏洞 |
| CVE-2021-31890 | 7.5 HIGH | Siemens Nucleus ReadyStart 安全漏洞 |
| CVE-2021-31889 | 7.5 HIGH | Siemens Nucleus 数字错误漏洞 |
| CVE-2021-31881 | 7.1 HIGH | Siemens Nucleus ReadyStart 缓冲区错误漏洞 |
| CVE-2021-31883 | 7.1 HIGH | Siemens Nucleus ReadyStart 缓冲区错误漏洞 |
| CVE-2021-40364 | 5.5 MEDIUM | Siemens SIMATIC PCS 7和SIMATIC WinCC 日志信息泄露漏洞 |
| CVE-2021-31344 | 5.3 MEDIUM | Siemens Nucleus ReadyStart 安全漏洞 |
| CVE-2021-31888 | Siemens Nucleus ReadyStart 缓冲区错误漏洞 | |
| CVE-2020-10052 | SIMATIC RTLS 日志信息泄露漏洞 | |
| CVE-2020-10053 | SIMATIC RTLS 安全漏洞 | |
| CVE-2020-10054 | SIMATIC RTLS 输入验证错误漏洞 | |
| CVE-2021-31884 | Siemens Nucleus ReadyStart 安全漏洞 | |
| CVE-2021-31885 | Siemens Nucleus ReadyStart 安全漏洞 | |
| CVE-2021-31886 | Siemens Nucleus ReadyStart 缓冲区错误漏洞 | |
| CVE-2021-42026 | Siemens Mendix 安全漏洞 | |
| CVE-2021-31887 | Siemens Nucleus ReadyStart 缓冲区错误漏洞 | |
| CVE-2021-37207 | Siemens Sentron Powermanager 安全漏洞 |
Showing top 20 of 25 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
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V. Comments for CVE-2021-31882
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