CVE-2021-44790— Possible buffer overflow when parsing multipart content in mod_lua of Apache HTTP Server 2.4.51 and earlier
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I. Basic Information for CVE-2021-44790
Vulnerability Information
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Vulnerability Title
Possible buffer overflow when parsing multipart content in mod_lua of Apache HTTP Server 2.4.51 and earlier
Source: NVD (National Vulnerability Database)
Vulnerability Description
A carefully crafted request body can cause a buffer overflow in the mod_lua multipart parser (r:parsebody() called from Lua scripts). The Apache httpd team is not aware of an exploit for the vulnerabilty though it might be possible to craft one. This issue affects Apache HTTP Server 2.4.51 and earlier.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
跨界内存写
Source: NVD (National Vulnerability Database)
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 中存在缓冲区错误漏洞，该漏洞源于产品的r:parsebody未能正确判断用户边界。攻击者可通过该漏洞导致缓冲区溢出。以下产品及版本受到影响：Apache HTTP Server 2.4.51 版本及之前版本。
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)
Shenlong Deep Dive — AI Deep Analysis
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Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server | Apache HTTP Server 2.4 ~ 2.4.51 | - |
II. Public POCs for CVE-2021-44790
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | Thực nghiệm CVE-2021-44790 | https://github.com/nuPacaChi/-CVE-2021-44790 | POC Details |
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- https://www.debian.org/security/2022/dsa-5035vendor-advisory
- http://seclists.org/fulldisclosure/2022/May/38mailing-list
- http://seclists.org/fulldisclosure/2022/May/35mailing-list
- http://seclists.org/fulldisclosure/2022/May/33mailing-list
- https://nvd.nist.gov/vuln/detail/CVE-2021-44790
Same Patch Batch · Apache Software Foundation · 2021-12-20 · 3 CVEs total
| CVE-2021-41561 | Apache Parquet-MR potential DoS in case of malicious Parquet file | |
| CVE-2021-44224 | Possible NULL dereference or SSRF in forward proxy configurations in Apache HTTP Server 2. |
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