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  • [gentoo-announce] [ GLSA 202009-14 ] Xen: Buffer overflow

    From Sam James@21:1/5 to All on Wed Sep 30 02:30:02 2020
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    Gentoo Linux Security Advisory GLSA 202009-14
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    https://security.gentoo.org/
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    Severity: Normal
    Title: Xen: Buffer overflow
    Date: September 29, 2020
    Bugs: #738040
    ID: 202009-14

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    Synopsis
    ========

    A buffer overflow in Xen might allow remote attacker(s) to execute
    arbitrary code.

    Background
    ==========

    Xen is a bare-metal hypervisor.

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

    -------------------------------------------------------------------
    Package / Vulnerable / Unaffected
    -------------------------------------------------------------------
    1 app-emulation/xen < 4.13.1-r3 >= 4.13.1-r3
    2 app-emulation/xen-tools < 4.13.1-r3 >= 4.13.1-r3
    -------------------------------------------------------------------
    2 affected packages

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

    An out-of-bounds read/write access issue was found in the USB emulator
    when using QEMU.

    Impact
    ======

    A remote attacker could possibly execute arbitrary code with the
    privileges of the process or cause a Denial of Service condition.

    Workaround
    ==========

    There is no known workaround at this time.

    Resolution
    ==========

    All Xen users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=app-emulation/xen-4.13.1-r3"

    All Xen tools users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot -v ">=app-emulation/xen-tools-4.13.1-r3"

    References
    ==========

    [ 1 ] CVE-2020-14364
    https://nvd.nist.gov/vuln/detail/CVE-2020-14364
    [ 2 ] XSA-335
    https://xenbits.xen.org/xsa/advisory-335.html

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

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

    https://security.gentoo.org/glsa/202009-14

    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


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