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CVE-2021-41973— Apache MINA HTTP listener DOS

Quick assessment

Affected
Apache Software Foundation Apache MINA
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Apache MINA是美国阿帕奇（Apache）基金会的一款网络应用程序框架。该产品主要用于开发高性能和高可伸缩性的网络应用程序。 Apache MINA存在安全漏洞，该漏洞源于在Apache MINA中，一个特定的、畸形的HTTP请求可能会导致HTTP Header解码器无限循环。解码器假设HTTP报头从缓冲区的开头开始，如果有比预期更多的数据，则进行循环。

AI Predicted 7.5 Difficulty: Moderate EPSS 4.63% · P91

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-41973

Vulnerability Information
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Vulnerability Title
Apache MINA HTTP listener DOS
Source: CVE Program / CVE List V5
Vulnerability Description
In Apache MINA, a specifically crafted, malformed HTTP request may cause the HTTP Header decoder to loop indefinitely. The decoder assumed that the HTTP Header begins at the beginning of the buffer and loops if there is more data than expected. Please update MINA to 2.1.5 or greater.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
不可达退出条件的循环(无限循环)
Source: CVE Program / CVE List V5
Vulnerability Title
Apache MINA 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache MINA是美国阿帕奇（Apache）基金会的一款网络应用程序框架。该产品主要用于开发高性能和高可伸缩性的网络应用程序。 Apache MINA存在安全漏洞，该漏洞源于在Apache MINA中，一个特定的、畸形的HTTP请求可能会导致HTTP Header解码器无限循环。解码器假设HTTP报头从缓冲区的开头开始，如果有比预期更多的数据，则进行循环。
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 MINA Apache MINA ~ 2.1.5 -

II. Public POCs for CVE-2021-41973

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III. Intelligence Information for CVE-2021-41973

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Vendor Advisories for CVE-2021-41973 (1)

Mailing List Discussions for CVE-2021-41973 (3)

IV. Related Vulnerabilities

Same product: Apache MINA
Same vendor: Apache Software Foundation
Same weakness: CWE-835

V. Comments for CVE-2021-41973

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