RLSA-2021:2308

    Dashboard / Vulnerabilities / RLSA-2021:2308

    RLSA-2021:2308

    Published: 8 Jun 2021Last Modified: 5 Feb 2026

    Summary: Important: microcode_ctl security, bug fix and enhancement update

    Details: The microcode_ctl packages provide microcode updates for Intel. Security Fix(es): * hw: vt-d related privilege escalation (CVE-2020-24489) * hw: improper isolation of shared resources in some Intel Processors (CVE-2020-24511) * hw: observable timing discrepancy in some Intel Processors (CVE-2020-24512) * hw: information disclosure on some Intel Atom processors (CVE-2020-24513) Bug Fix(es) and Enhancement(s): * Update Intel CPU microcode to microcode-20210525 release

    References: https://errata.rockylinux.org/RLSA-2021:2308, https://bugzilla.redhat.com/show_bug.cgi?id=1962650, https://bugzilla.redhat.com/show_bug.cgi?id=1962666, https://bugzilla.redhat.com/show_bug.cgi?id=1962702, https://bugzilla.redhat.com/show_bug.cgi?id=1962722

    Affected packages

    Package

    Name: microcode_ctl

    Purl: pkg:rpm/rocky-linux/microcode_ctl?distro=rocky-linux-8-4-legacy&epoch=4

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -4:20210216-1.20210525.1.el8_4

    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-2021:2308 | CVE-DB