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CVE-2020-9494

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）软件基金会的一套可扩展的HTTP代理和缓存服务器。 Apache Traffic Server 6.0.0版本至6.2.3版本、7.0.0版本至7.1.10版本和8.0.0版本至8.0.7版本中存在安全漏洞。攻击者可借助格式错误的HTTP/2报头利用该漏洞造成拒绝服务。

AI Predicted 7.5 Difficulty: Easy EPSS 3.98% · P90

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking
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I. Basic Information for CVE-2020-9494

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Apache Traffic Server 6.0.0 to 6.2.3, 7.0.0 to 7.1.10, and 8.0.0 to 8.0.7 is vulnerable to certain types of HTTP/2 HEADERS frames that can cause the server to allocate a large amount of memory and spin the thread.
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
Apache Traffic Server 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache Traffic Server（ATS）是美国阿帕奇（Apache）软件基金会的一套可扩展的HTTP代理和缓存服务器。 Apache Traffic Server 6.0.0版本至6.2.3版本、7.0.0版本至7.1.10版本和8.0.0版本至8.0.7版本中存在安全漏洞。攻击者可借助格式错误的HTTP/2报头利用该漏洞造成拒绝服务。
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 6.0.0 to 6.2.3 -

II. Public POCs for CVE-2020-9494

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III. Intelligence Information for CVE-2020-9494

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Vendor Advisories for CVE-2020-9494 (1)

Mailing List Discussions for CVE-2020-9494 (2)

IV. Related Vulnerabilities

Same product: Apache Traffic Server
Same vendor: Apache Software Foundation

V. Comments for CVE-2020-9494

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