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CVE-2024-31309— Apache Traffic Server: HTTP/2 CONTINUATION frames can be utilized for DoS attack

Quick assessment

Affected
Apache Software Foundation Apache Traffic Server
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 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 8.1.10之前版本，9.2.4之前版本存在输入验证错误漏洞，该漏洞源于HTTP/2协议的实现方式存在安全漏洞。

AI Predicted 5.3 Difficulty: Moderate EPSS 94.62% · P100
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I. Basic Information for CVE-2024-31309

Vulnerability Information
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Vulnerability Title
Apache Traffic Server: HTTP/2 CONTINUATION frames can be utilized for DoS attack
Source: CVE Program / CVE List V5
Vulnerability Description
HTTP/2 CONTINUATION DoS attack can cause Apache Traffic Server to consume more resources on the server.  Version from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.3 are affected. Users can set a new setting (proxy.config.http2.max_continuation_frames_per_minute) to limit the number of CONTINUATION frames per minute.  ATS does have a fixed amount of memory a request can use and ATS adheres to these limits in previous releases. Users are recommended to upgrade to versions 8.1.10 or 9.2.4 which fixes the issue.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Apache Traffic Server 输入验证错误漏洞
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 8.1.10之前版本，9.2.4之前版本存在输入验证错误漏洞，该漏洞源于HTTP/2协议的实现方式存在安全漏洞。
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 8.0.0 ~ 8.1.9 -

II. Public POCs for CVE-2024-31309

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III. Intelligence Information for CVE-2024-31309

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Mailing List Discussions for CVE-2024-31309 (7)

IV. Related Vulnerabilities

Same product: Apache Traffic Server
Same vendor: Apache Software Foundation
Same weakness: CWE-20

V. Comments for CVE-2024-31309

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