• [ GLSA 202105-33 ] containerd: Multiple vulnerabilities

    From Thomas Deutschmann@21:1/5 to All on Wed May 26 12:40:01 2021
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    Gentoo Linux Security Advisory GLSA 202105-33
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    https://security.gentoo.org/
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    Severity: High
    Title: containerd: Multiple vulnerabilities
    Date: May 26, 2021
    Bugs: #758137, #775329
    ID: 202105-33

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    Synopsis
    ========

    Multiple vulnerabilities have been found in containerd, the worst of
    which could result in privilege escalation.

    Background
    ==========

    Containerd is a daemon with an API and a command line client, to manage containers on one machine. It uses runC to run containers according to
    the OCI specification.

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

    -------------------------------------------------------------------
    Package / Vulnerable / Unaffected
    -------------------------------------------------------------------
    1 app-emulation/containerd
    < 1.4.4 >= 1.4.4

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

    Multiple vulnerabilities have been discovered in containerd. Please
    review the CVE identifiers referenced below for details.

    Impact
    ======

    A local attacker, able to run a malicious container in the same network namespace as the shim, could possibly escalate privileges. Furthermore,
    an attacker could disclose sensitive information.

    Workaround
    ==========

    There is no known workaround at this time.

    Resolution
    ==========

    All containerd users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=app-emulation/containerd-1.4.4"

    References
    ==========

    [ 1 ] CVE-2020-15257
    https://nvd.nist.gov/vuln/detail/CVE-2020-15257
    [ 2 ] CVE-2021-21334
    https://nvd.nist.gov/vuln/detail/CVE-2021-21334

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

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

    https://security.gentoo.org/glsa/202105-33

    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 security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.

    License
    =======

    Copyright 2021 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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