{"id":"RLSA-2021:4404","summary":"Low: kexec-tools security, bug fix, and enhancement update","details":"The kexec-tools packages contain the /sbin/kexec binary and utilities that together form the user-space component of the kernel's kexec feature. The /sbin/kexec binary facilitates a new kernel to boot using the kernel's kexec feature either on a normal or a panic reboot. The kexec fastboot mechanism allows booting a Linux kernel from the context of an already running kernel. \n\nSecurity Fix(es):\n\n* kexec-tools: incorrect permissions on kdump dmesg file (CVE-2021-20269)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the Rocky Linux 8.5 Release Notes linked from the References section.","modified":"2026-03-11T06:00:58.288646Z","published":"2021-11-09T09:17:49Z","upstream":["CVE-2021-20269"],"references":[{"type":"ADVISORY","url":"https://errata.rockylinux.org/RLSA-2021:4404"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1892558"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1915819"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1918499"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1934261"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1965267"}],"affected":[{"package":{"name":"kexec-tools","ecosystem":"Rocky Linux:8","purl":"pkg:rpm/rocky-linux/kexec-tools?distro=rocky-linux-8-5-legacy&epoch=0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.0.20-57.el8"}],"database_specific":{"yum_repository":"BaseOS"}}],"database_specific":{"source":"https://storage.googleapis.com/resf-osv-data/RLSA-2021:4404.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N"}],"credits":[{"name":"Rocky Enterprise Software Foundation"},{"name":"Red Hat"}]}