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CVE-2006-20001— Apache HTTP Server: mod_dav out of bounds read, or write of zero byte

Quick assessment

Affected
Apache Software Foundation Apache HTTP Server
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Apache HTTP Server是美国阿帕奇（Apache）基金会的一款开源网页服务器。该服务器具有快速、可靠且可通过简单的API进行扩充的特点。 Apache HTTP Server 2.4.54版本及之前版本存在缓冲区错误漏洞。攻击者利用该漏洞导致进程崩溃。

AI Predicted 5.9 Difficulty: Hard EPSS 3.55% · P89

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2006-20001

Vulnerability Information
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Vulnerability Title
Apache HTTP Server: mod_dav out of bounds read, or write of zero byte
Source: CVE Program / CVE List V5
Vulnerability Description
A carefully crafted If: request header can cause a memory read, or write of a single zero byte, in a pool (heap) memory location beyond the header value sent. This could cause the process to crash. This issue affects Apache HTTP Server 2.4.54 and earlier.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存写
Source: CVE Program / CVE List V5
Vulnerability Title
Apache HTTP Server 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache HTTP Server是美国阿帕奇（Apache）基金会的一款开源网页服务器。该服务器具有快速、可靠且可通过简单的API进行扩充的特点。 Apache HTTP Server 2.4.54版本及之前版本存在缓冲区错误漏洞。攻击者利用该漏洞导致进程崩溃。
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 HTTP Server 2.4 ~ 2.4.54 -

II. Public POCs for CVE-2006-20001

# POC Description Source Link Shenlong Link
1 A carefully crafted If: request header can cause a memory read, or write of a single zero byte, in a pool (heap) memory location beyond the header value sent. This could cause the process to crash. This issue affects Apache HTTP Server 2.4.54 and earlier. CVE project by @Sn0wAlice https://github.com/Saksham2002/CVE-2006-20001 POC Details
2 A carefully crafted If: request header can cause a memory read, or write of a single zero byte, in a pool (heap) memory location beyond the header value sent. This could cause the process to crash. This issue affects Apache HTTP Server 2.4.54 and earlier. CVE project by @Sn0wAlice https://github.com/r1az4r/CVE-2006-20001 POC Details
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III. Intelligence Information for CVE-2006-20001

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Vendor Advisories for CVE-2006-20001 (2)

Same Patch Batch · Apache Software Foundation · 2023-01-17 · 3 CVEs total

CVE-2022-37436 Apache HTTP Server: mod_proxy prior to 2.4.55 allows a backend to trigger HTTP response sp
CVE-2022-36760 Apache HTTP Server: mod_proxy_ajp Possible request smuggling

IV. Related Vulnerabilities

Same product: Apache HTTP Server
Same vendor: Apache Software Foundation
Same weakness: CWE-787

V. Comments for CVE-2006-20001

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