CVE-2021-20269 – kexec-tools: incorrect permissions on kdump dmesg file

https://notcve.org/view.php?id=CVE-2021-20269

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. Se ha encontrado un fallo en los permisos de un archivo de registro creado por kexec-tools. • https://bugzilla.redhat.com/show_bug.cgi?id=1934261 https://access.redhat.com/security/cve/CVE-2021-20269 • CWE-276: Incorrect Default Permissions •