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I. Basic Information for CVE-2020-28049
Vulnerability Information

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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
An issue was discovered in SDDM before 0.19.0. It incorrectly starts the X server in a way that - for a short time period - allows local unprivileged users to create a connection to the X server without providing proper authentication. A local attacker can thus access X server display contents and, for example, intercept keystrokes or access the clipboard. This is caused by a race condition during Xauthority file creation.
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
SDDM 竞争条件问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SDDM是SSDM团队的一款基于 Qt 的桌面环境 KDE 和 LXQt 的显示管理器。 SDDM 0.19.0之前的版本中存在竞争条件问题漏洞。该漏洞源于错误地启动X服务器,而这种方式会在短时间内允许本地非特权用户创建与X服务器的连接,而无需提供适当的身份验证。本地攻击者可以访问X服务器的显示内容。
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
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II. Public POCs for CVE-2020-28049
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III. Intelligence Information for CVE-2020-28049
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