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CVE-2022-41716— Unsanitized NUL in environment variables on Windows in syscall and os/exec

Quick assessment

Affected
Go standard library syscall
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.

Google Golang是美国谷歌（Google）公司的一种静态强类型、编译型语言。Go的语法接近C语言，但对于变量的声明有所不同。Go支持垃圾回收功能。Go的并行模型是以东尼·霍尔的通信顺序进程（CSP）为基础，采取类似模型的其他语言包括Occam和Limbo，但它也具有Pi运算的特征，比如通道传输。在1.8版本中开放插件（Plugin）的支持，这意味着现在能从Go中动态加载部分函数。 Google Golang 存在安全漏洞，该漏洞源于未初始化NUL值。攻击者利用该漏洞能够在Windows上恶意设置

AI Predicted 5.3 Difficulty: Moderate EPSS 0.84% · P56
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I. Basic Information for CVE-2022-41716

Vulnerability Information
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Vulnerability Title
Unsanitized NUL in environment variables on Windows in syscall and os/exec
Source: CVE Program / CVE List V5
Vulnerability Description
Due to unsanitized NUL values, attackers may be able to maliciously set environment variables on Windows. In syscall.StartProcess and os/exec.Cmd, invalid environment variable values containing NUL values are not properly checked for. A malicious environment variable value can exploit this behavior to set a value for a different environment variable. For example, the environment variable string "A=B\x00C=D" sets the variables "A=B" and "C=D".
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
Google Golang 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Google Golang是美国谷歌（Google）公司的一种静态强类型、编译型语言。Go的语法接近C语言，但对于变量的声明有所不同。Go支持垃圾回收功能。Go的并行模型是以东尼·霍尔的通信顺序进程（CSP）为基础，采取类似模型的其他语言包括Occam和Limbo，但它也具有Pi运算的特征，比如通道传输。在1.8版本中开放插件（Plugin）的支持，这意味着现在能从Go中动态加载部分函数。 Google Golang 存在安全漏洞，该漏洞源于未初始化NUL值。攻击者利用该漏洞能够在Windows上恶意设置
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
Go standard library syscall 0 ~ 1.18.8 -
Go standard library os/exec 0 ~ 1.18.8 -

II. Public POCs for CVE-2022-41716

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III. Intelligence Information for CVE-2022-41716

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Other References for CVE-2022-41716 (4)

IV. Related Vulnerabilities

Same product: syscall
Same vendor: Go standard library

V. Comments for CVE-2022-41716

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