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I. Basic Information for CVE-2021-40824
Vulnerability Information

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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
A logic error in the room key sharing functionality of Element Android before 1.2.2 and matrix-android-sdk2 (aka Matrix SDK for Android) before 1.2.2 allows a malicious Matrix homeserver present in an encrypted room to steal room encryption keys (via crafted Matrix protocol messages) that were originally sent by affected Matrix clients participating in that room. This allows the attacker to decrypt end-to-end encrypted messages sent by affected clients.
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
Element Android 加密问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Element Android是Element提供的 Android Matrix 客户端。 Element Android 1.2.2 之前版本和matrix-android-sdk2 1.2.2 之前版本存在加密问题漏洞,该漏洞源于设备的房间钥匙共享功能存在逻辑错误,导致身份验证不充分,从而可以冒充请求钥匙的设备。
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-2021-40824
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III. Intelligence Information for CVE-2021-40824
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IV. Related Vulnerabilities
V. Comments for CVE-2021-40824

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