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I. Basic Information for CVE-2021-39521
Vulnerability Information

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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
An issue was discovered in libredwg through v0.10.1.3751. A NULL pointer dereference exists in the function bit_read_BB() located in bits.c. It allows an attacker to cause Denial of Service.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
libredwg 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Libredwg是美国Free Software Foundation基金会的一个免费的 C 库。用于读写 Dwg 文件。 libredwg存在安全漏洞,该漏洞源于在decode.c中的check POLYLINE handles()函数中存在一个空指针解引用。它允许攻击者可利用该漏洞引起拒绝服务。
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
VendorProductAffected VersionsCPESubscribe
-n/a n/a -
II. Public POCs for CVE-2021-39521
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III. Intelligence Information for CVE-2021-39521
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IV. Related Vulnerabilities
V. Comments for CVE-2021-39521

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