RLSA-2021:4321

    Dashboard / Vulnerabilities / RLSA-2021:4321

    RLSA-2021:4321

    Published: 9 Nov 2021Last Modified: 5 Feb 2026
    Upstream:
    CVE-2021-3571

    Summary: Moderate: linuxptp security, bug fix, and enhancement update

    Details: The linuxptp packages provide Precision Time Protocol (PTP) implementation for Linux according to IEEE standard 1588 for Linux. The dual design goals are to provide a robust implementation of the standard and to use the most relevant and modern Application Programming Interfaces (API) offered by the Linux kernel. The following packages have been upgraded to a later upstream version: linuxptp (3.1.1). (BZ#1895005) Security Fix(es): * linuxptp: wrong length of one-step follow-up in transparent clock (CVE-2021-3571) 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-2021:4321, https://bugzilla.redhat.com/show_bug.cgi?id=1895005, https://bugzilla.redhat.com/show_bug.cgi?id=1966241

    Affected packages

    Package

    Name: linuxptp

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -0:3.1.1-1.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-2021:4321 | CVE-DB