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I. Basic Information for CVE-2021-20269
Vulnerability Information

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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
A flaw was found in the permissions of a log file created by kexec-tools. This flaw allows a local unprivileged user to read this file and leak kernel internal information from a previous panic. The highest threat from this vulnerability is to confidentiality. This flaw affects kexec-tools shipped by Fedora versions prior to 2.0.21-8 and RHEL versions prior to 2.0.20-47.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
缺省权限不正确
Source: NVD (National Vulnerability Database)
Vulnerability Title
Red Hat Enterprise Linux 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Red Hat Enterprise Linux是美国红帽(Red Hat)公司的面向企业用户的Linux操作系统 Red Hat Enterprise Linux 存在安全漏洞,该漏洞源于/sbin/kexec 二进制文件有助于在正常或紧急重启时使用内核的 kexec 功能启动新内核。kexec fastboot 机制允许从已经运行的内核的上下文中启动 Linux 内核。
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
-kexec-tools Fedora kexec-tools versions prior to 2.0.21-8 and RHEL kexec-tools versions prior to 2.0.20-47 -
II. Public POCs for CVE-2021-20269
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III. Intelligence Information for CVE-2021-20269
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IV. Related Vulnerabilities
V. Comments for CVE-2021-20269

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