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CVE-2023-24534— Excessive memory allocation in net/http and net/textproto

Quick assessment

Affected
Go standard library net/textproto
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HTTP 和 MIME 标头解析时会分配大量内存，即使在解析小的

AI Predicted 7.5 Difficulty: Easy EPSS 1.89% · P79

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2023-24534

Vulnerability Information
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Vulnerability Title
Excessive memory allocation in net/http and net/textproto
Source: CVE Program / CVE List V5
Vulnerability Description
HTTP and MIME header parsing can allocate large amounts of memory, even when parsing small inputs, potentially leading to a denial of service. Certain unusual patterns of input data can cause the common function used to parse HTTP and MIME headers to allocate substantially more memory than required to hold the parsed headers. An attacker can exploit this behavior to cause an HTTP server to allocate large amounts of memory from a small request, potentially leading to memory exhaustion and a denial of service. With fix, header parsing now correctly allocates only the memory required to hold parsed headers.
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 资源管理错误漏洞
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HTTP 和 MIME 标头解析时会分配大量内存，即使在解析小的
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 net/textproto 0 ~ 1.19.8 -

II. Public POCs for CVE-2023-24534

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III. Intelligence Information for CVE-2023-24534

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Vendor Advisories for CVE-2023-24534 (2)

Other References for CVE-2023-24534 (3)

Same Patch Batch · Go standard library · 2023-04-06 · 4 CVEs total

CVE-2023-24536 Excessive resource consumption in net/http, net/textproto and mime/multipart
CVE-2023-24537 Infinite loop in parsing in go/scanner
CVE-2023-24538 Backticks not treated as string delimiters in html/template

IV. Related Vulnerabilities

Same product: net/textproto
Same vendor: Go standard library

V. Comments for CVE-2023-24534

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