CVE-2021-31229
Quick assessment
Affected
n/a n/a
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
ezXML是一款XML文档解析库。 ezXML 0.8.6 存在安全漏洞，该漏洞源于函数ezxml internal dtd()在解析精心制作的XML文件时执行了错误的内存处理，这导致了对一个字节常量的越位写入。
Possible ATT&CK Techniques 1 AI
T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2021-31229
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An issue was discovered in libezxml.a in ezXML 0.8.6. The function ezxml_internal_dtd() performs incorrect memory handling while parsing crafted XML files, which leads to an out-of-bounds write of a one byte constant.
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
ezXML 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ezXML是一款XML文档解析库。 ezXML 0.8.6 存在安全漏洞，该漏洞源于函数ezxml internal dtd()在解析精心制作的XML文件时执行了错误的内存处理，这导致了对一个字节常量的越位写入。
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 |
|---|---|---|---|---|
| - | n/a | n/a | - |
|
II. Public POCs for CVE-2021-31229
| # | POC Description | Source Link | Shenlong Link |
|---|
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Mailing List Discussions for CVE-2021-31229 (1)
Other References for CVE-2021-31229 (1)
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https://sourceforge.net/p/ezxml/bugs/26/ x_refsource_MISC
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IV. Related Vulnerabilities
V. Comments for CVE-2021-31229
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