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I. Basic Information for CVE-2021-34813
Vulnerability Information

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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
Matrix libolm before 3.2.3 allows a malicious Matrix homeserver to crash a client (while it is attempting to retrieve an Olm encrypted room key backup from the homeserver) because olm_pk_decrypt has a stack-based buffer overflow. Remote code execution might be possible for some nonstandard build configurations.
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
Matrix libm 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Matrix libolm是一个加密库。 Matrix libm 存在安全漏洞,该漏洞源于在3.2.3之前版本的Matrix libm允许一个恶意的Matrix主服务器崩溃一个客户端(当它试图从主服务器检索一个Olm加密的房间密钥备份),因为Olm pk解密有一个基于堆栈的缓冲区溢出。攻击者可利用该漏洞远程代码执行。
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
-n/a n/a -
II. Public POCs for CVE-2021-34813
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III. Intelligence Information for CVE-2021-34813
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IV. Related Vulnerabilities
V. Comments for CVE-2021-34813

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