RLSA-2021:4404

    Dashboard / Vulnerabilities / RLSA-2021:4404

    RLSA-2021:4404

    Published: 9 Nov 2021Last Modified: 4 Feb 2026
    Upstream:
    CVE-2021-20269

    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. Security Fix(es): * kexec-tools: incorrect permissions on kdump dmesg file (CVE-2021-20269) For 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. Additional Changes: For detailed information on changes in this release, see the Rocky Linux 8.5 Release Notes linked from the References section.

    References: https://errata.rockylinux.org/RLSA-2021:4404, https://bugzilla.redhat.com/show_bug.cgi?id=1892558, https://bugzilla.redhat.com/show_bug.cgi?id=1915819, https://bugzilla.redhat.com/show_bug.cgi?id=1918499, https://bugzilla.redhat.com/show_bug.cgi?id=1934261, https://bugzilla.redhat.com/show_bug.cgi?id=1965267

    Affected packages

    Package

    Name: kexec-tools

    Purl: pkg:rpm/rocky-linux/kexec-tools?distro=rocky-linux-8-5-legacy&epoch=0

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -0:2.0.20-57.el8

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    RLSA-2021:4404 | CVE-DB