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I. Basic Information for CVE-2021-21827
Vulnerability Information

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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
A heap-based buffer overflow vulnerability exists in the XML Decompression DecodeTreeBlock functionality of AT&T Labs Xmill 0.7. Within `DecodeTreeBlock` which is called during the decompression of an XMI file, a UINT32 is loaded from the file and used as trusted input as the length of a buffer. An attacker can provide a malicious file to trigger this vulnerability.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: NVD (National Vulnerability Database)
Vulnerability Title
AT&T Labs Xmill 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
AT&T Labs Xmill是美国AT&T Labs实验室的一种用于高效压缩 XML 数据的新工具。 AT&T Labs Xmill 0.7 的 XML Decompression DecodeTreeBlock 功能中存在安全漏洞,攻击者可以提供特制的 XMI 文件导致远程代码执行。
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
VendorProductAffected VersionsCPESubscribe
-AT&T AT&T Labs Xmill 0.7, Schneider Electric EcoStruxure Control Expert 15 -
II. Public POCs for CVE-2021-21827
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III. Intelligence Information for CVE-2021-21827
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IV. Related Vulnerabilities
V. Comments for CVE-2021-21827

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