• [gentoo-announce] [ GLSA 202008-06 ] iproute2: Denial of service

    From Sam James@21:1/5 to All on Sat Aug 8 06:40:02 2020
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    Gentoo Linux Security Advisory GLSA 202008-06
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    https://security.gentoo.org/
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

    Severity: Normal
    Title: iproute2: Denial of service
    Date: August 08, 2020
    Bugs: #722144
    ID: 202008-06

    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

    Synopsis
    ========

    A use-after-free was found in iproute2, possibly allowing a Denial of
    Service condition.

    Background
    ==========

    iproute2 is a set of tools for managing Linux network routing and
    advanced features.

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

    -------------------------------------------------------------------
    Package / Vulnerable / Unaffected
    -------------------------------------------------------------------
    1 sys-apps/iproute2 < 5.1.0 >= 5.1.0

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

    iproute2 was found to contain a use-after-free in get_netnsid_from_name
    in ip/ipnetns.c.

    Impact
    ======

    A remote attacker, able to feed iproute2 crafted data, may be able to
    cause a Denial of Service condition.

    Workaround
    ==========

    There is no known workaround at this time.

    Resolution
    ==========

    All iproute2 users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=sys-apps/iproute2-5.1.0"

    References
    ==========

    [ 1 ] CVE-2019-20795
    https://nvd.nist.gov/vuln/detail/CVE-2019-20795

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

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

    https://security.gentoo.org/glsa/202008-06

    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 2020 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


    -----BEGIN PGP SIGNATURE-----

    iNUEARYKAH0WIQSONjK3ErBA5VvN3hCxfj6E5hA8mwUCXy4oBl8UgAAAAAAuAChp c3N1ZXItZnByQG5vdGF0aW9ucy5vcGVucGdwLmZpZnRoaG9yc2VtYW4ubmV0OEUz NjMyQjcxMkIwNDBFNTVCQ0RERTEwQjE3RTNFODRFNjEwM0M5QgAKCRCxfj6E5hA8 m328AQD1qtAFyXBhOimPP9KVte939+Cb1rO1UREjrh1ZQojBsgEA6uU3XDGDmq72 QxuJoZETkrP+KXWCQQsHYlSUbAQFiA8=
    =hAn4
    -----END PGP SIGNATURE-----

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)