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  • [gentoo-announce] [ GLSA 202305-12 ] sudo: Root Privilege Escalation

    From [email protected]@21:1/5 to All on Wed May 3 12:10:02 2023
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    Gentoo Linux Security Advisory GLSA 202305-12
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    https://security.gentoo.org/
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    Severity: High
    Title: sudo: Root Privilege Escalation
    Date: May 03, 2023
    Bugs: #891335
    ID: 202305-12

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    Synopsis
    ========

    A vulnerability has been discovered in sudo which could result in root privilege escalation.

    Background
    ==========

    sudo allows a system administrator to give users the ability to run
    commands as other users.

    Affected packages
    =================

    -------------------------------------------------------------------
    Package / Vulnerable / Unaffected
    -------------------------------------------------------------------
    1 app-admin/sudo < 1.9.12_p2 >= 1.9.12_p2

    Description
    ===========

    The sudoedit (aka -e) feature mishandles extra arguments passed in the user-provided environment variables (SUDO_EDITOR, VISUAL, and EDITOR),
    allowing a local attacker to append arbitrary entries to the list of
    files to process.

    Impact
    ======

    The improper processing of user's environment variables could lead to
    the editing of arbitrary files as root, potentially leading to root
    privilege escalation.

    Workaround
    ==========

    There is no known workaround at this time.

    Resolution
    ==========

    All sudo users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=app-admin/sudo-1.9.12_p2"

    References
    ==========

    [ 1 ] CVE-2023-22809
    https://nvd.nist.gov/vuln/detail/CVE-2023-22809

    Availability
    ============

    This GLSA and any updates to it are available for viewing at
    the Gentoo Security Website:

    https://security.gentoo.org/glsa/202305-12

    Concerns?
    =========

    Security is a primary focus of Gentoo Linux and ensuring the
    confidentiality and security of our users' machines is of utmost
    importance to us. Any security concerns should be addressed to [email protected] or alternatively, you may file a bug at https://bugs.gentoo.org.

    License
    =======

    Copyright 2023 Gentoo Foundation, Inc; referenced text
    belongs to its owner(s).

    The contents of this document are licensed under the
    Creative Commons - Attribution / Share Alike license.

    https://creativecommons.org/licenses/by-sa/2.5
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