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CVE-2021-43082— heap-buffer-overflow with stats-over-http plugin

Quick assessment

Affected
Apache Software Foundation Apache Traffic Server
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.

Apache Traffic Server（ATS）是美国阿帕奇（Apache）基金会的一套可扩展的HTTP代理和缓存服务器。 Apache Traffic Server 9.1.0版本存在安全漏洞，该漏洞源于stats-over-http插件没有检测输入到缓冲区内容的大小，攻击者可以通过该漏洞覆盖内存。

AI Predicted 9.8 Difficulty: Moderate EPSS 2.33% · P82
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I. Basic Information for CVE-2021-43082

Vulnerability Information
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Vulnerability Title
heap-buffer-overflow with stats-over-http plugin
Source: CVE Program / CVE List V5
Vulnerability Description
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in the stats-over-http plugin of Apache Traffic Server allows an attacker to overwrite memory. This issue affects Apache Traffic Server 9.1.0.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: CVE Program / CVE List V5
Vulnerability Title
Apache Traffic Server 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache Traffic Server（ATS）是美国阿帕奇（Apache）基金会的一套可扩展的HTTP代理和缓存服务器。 Apache Traffic Server 9.1.0版本存在安全漏洞，该漏洞源于stats-over-http插件没有检测输入到缓冲区内容的大小，攻击者可以通过该漏洞覆盖内存。
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
Apache Software Foundation Apache Traffic Server 9.1.0 -

II. Public POCs for CVE-2021-43082

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III. Intelligence Information for CVE-2021-43082

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Mailing List Discussions for CVE-2021-43082 (1)

Same Patch Batch · Apache Software Foundation · 2021-11-03 · 6 CVEs total

CVE-2021-37147 Request Smuggling - LF line ending
CVE-2021-37148 Request Smuggling - transfer encoding validation
CVE-2021-37149 Request Smuggling - multiple attacks
CVE-2021-38161 Not validating origin TLS certificate
CVE-2021-41585 ATS stops accepting connections on FreeBSD

IV. Related Vulnerabilities

Same product: Apache Traffic Server
Same vendor: Apache Software Foundation
Same weakness: CWE-120

V. Comments for CVE-2021-43082

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