UBUNTU-CVE-2021-41617

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    UBUNTU-CVE-2021-41617

    Published: 26 Sept 2021Last Modified: 16 Sept 2026
    Upstream:
    CVE-2021-41617

    Summary:

    Details: sshd in OpenSSH 6.2 through 8.x before 8.8, when certain non-default configurations are used, allows privilege escalation because supplemental groups are not initialized as expected. Helper programs for AuthorizedKeysCommand and AuthorizedPrincipalsCommand may run with privileges associated with group memberships of the sshd process, if the configuration specifies running the command as a different user.

    References: https://ubuntu.com/security/CVE-2021-41617, https://www.openwall.com/lists/oss-security/2021/09/26/1, https://www.openssh.com/txt/release-8.8, https://www.openssh.com/security.html, https://ubuntu.com/security/notices/USN-5666-1, https://ubuntu.com/security/notices/USN-6565-1, https://www.cve.org/CVERecord?id=CVE-2021-41617

    Affected packages

    Package

    Name: openssh

    Purl: pkg:deb/ubuntu/openssh?arch=source&distro=esm-infra-legacy%2Ftrusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    1:6.2p2-6

    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-2021-41617 | CVE-DB