• [gentoo-announce] [ GLSA 202107-25 ] Tor: Multiple vulnerabilities

    From John Helmert III@21:1/5 to All on Sat Jul 10 05:20:01 2021
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    Gentoo Linux Security Advisory GLSA 202107-25
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    https://security.gentoo.org/
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    Severity: Normal
    Title: Tor: Multiple vulnerabilities
    Date: July 10, 2021
    Bugs: #776586, #795969
    ID: 202107-25

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    Synopsis
    ========

    Multiple vulnerabilities have been found in Tor, the worst of which
    could result in a Denial of Service condition.

    Background
    ==========

    Tor is an implementation of second generation Onion Routing, a connection-oriented anonymizing communication service.

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

    -------------------------------------------------------------------
    Package / Vulnerable / Unaffected
    -------------------------------------------------------------------
    1 net-vpn/tor < 0.4.6.5 >= 0.4.6.5
    >= 0.4.5.9
    >= 0.4.4.9

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

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

    Impact
    ======

    Please review the referenced CVE identifiers for details.

    Workaround
    ==========

    There is no known workaround at this time.

    Resolution
    ==========

    All Tor 0.4.6.x users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=net-vpn/tor-0.4.6.5"

    All Tor 0.4.5.x users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=net-vpn/tor-0.4.5.9"

    All Tor 0.4.4.x users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=net-vpn/tor-0.4.4.9"

    References
    ==========

    [ 1 ] CVE-2021-28089
    https://nvd.nist.gov/vuln/detail/CVE-2021-28089
    [ 2 ] CVE-2021-28090
    https://nvd.nist.gov/vuln/detail/CVE-2021-28090
    [ 3 ] CVE-2021-34548
    https://nvd.nist.gov/vuln/detail/CVE-2021-34548
    [ 4 ] CVE-2021-34549
    https://nvd.nist.gov/vuln/detail/CVE-2021-34549
    [ 5 ] CVE-2021-34550
    https://nvd.nist.gov/vuln/detail/CVE-2021-34550

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

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

    https://security.gentoo.org/glsa/202107-25

    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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