CVE-2021-31871
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.
klibc是一个应用软件。提供尽可能多地从内核空间中尽早启动的工作功能。 klibc 2.0.9之前版本存在安全漏洞，该漏洞源于cpio命令中的整数溢出可能导致在64位系统上取消引用NULL指针。
Possible ATT&CK Techniques 1 AI
T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2021-31871
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An issue was discovered in klibc before 2.0.9. An integer overflow in the cpio command may result in a NULL pointer dereference on 64-bit systems.
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
klibc 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
klibc是一个应用软件。提供尽可能多地从内核空间中尽早启动的工作功能。 klibc 2.0.9之前版本存在安全漏洞，该漏洞源于cpio命令中的整数溢出可能导致在64位系统上取消引用NULL指针。
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-2021-31871
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2021-31871 (1)
Mailing List Discussions for CVE-2021-31871 (3)
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https://lists.zytor.com/archives/klibc/2021-April/004593.html x_refsource_MISC
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Other References for CVE-2021-31871 (1)
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https://kernel.org/pub/linux/libs/klibc/2.0/ x_refsource_MISC
Same Patch Batch · n/a · 2021-04-30 · 22 CVEs total
| CVE-2020-7731 | 7.5 HIGH | Denial of Service (DoS) |
| CVE-2021-31933 | 7.2 HIGH | Chamilo 输入验证错误漏洞 |
| CVE-2021-31232 | cortex 输入验证错误漏洞 | |
| CVE-2021-31873 | klibc 输入验证错误漏洞 | |
| CVE-2021-31919 | Rust rkyv crate 安全漏洞 | |
| CVE-2021-31872 | klibc 输入验证错误漏洞 | |
| CVE-2021-31870 | klibc 输入验证错误漏洞 | |
| CVE-2021-26807 | Boost Connect community Galaxy Client 代码问题漏洞 | |
| CVE-2020-1721 | pki-core 跨站脚本漏洞 | |
| CVE-2021-20266 | Red Hat Package Manager 缓冲区错误漏洞 | |
| CVE-2020-24918 | Ambarella Oryx RTSP Server 缓冲区错误漏洞 | |
| CVE-2021-28959 | Zoho ManageEngine Eventlog Analyzer 路径遍历漏洞 | |
| CVE-2021-31231 | Grafana 输入验证错误漏洞 | |
| CVE-2021-31792 | SuiteCRM 跨站脚本漏洞 | |
| CVE-2020-27519 | pritunl 安全漏洞 | |
| CVE-2021-31926 | CubeCoders AMP 安全漏洞 | |
| CVE-2020-18084 | Yzmcms 跨站脚本漏洞 | |
| CVE-2020-28943 | Open-xchange OX App Suite 代码问题漏洞 | |
| CVE-2020-28944 | Open-Xchange OX App Suite 资源管理错误漏洞 | |
| CVE-2021-31935 | Open-xchange OX App Suite 跨站脚本漏洞 |
Showing top 20 of 22 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
V. Comments for CVE-2021-31871
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