UBUNTU-CVE-2021-3621

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    UBUNTU-CVE-2021-3621

    Published: 16 Aug 2021Last Modified: 22 Apr 2026
    Upstream:
    CVE-2021-3621
    Aliases:
    USN-5067-1

    Summary:

    Details: A flaw was found in SSSD, where the sssctl command was vulnerable to shell command injection via the logs-fetch and cache-expire subcommands. This flaw allows an attacker to trick the root user into running a specially crafted sssctl command, such as via sudo, to gain root access. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

    References: https://ubuntu.com/security/CVE-2021-3621, https://ubuntu.com/security/notices/USN-5067-1, https://www.cve.org/CVERecord?id=CVE-2021-3621

    Affected packages

    Package

    Name: sssd

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=bionic

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.16.1-1ubuntu1.8

    Affected versions

    1.15.3-2ubuntu1
    1.15.3-3ubuntu1

    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
    UBUNTU-CVE-2021-3621 | CVE-DB