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  • [ GLSA 202105-07 ] Telegram: Security bypass

    From Thomas Deutschmann@21:1/5 to All on Wed May 26 10:50:02 2021
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    Gentoo Linux Security Advisory GLSA 202105-07
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    https://security.gentoo.org/
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    Severity: Low
    Title: Telegram: Security bypass
    Date: May 26, 2021
    Bugs: #771684
    ID: 202105-07

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    Synopsis
    ========

    An insufficient session expiration has been reported in Telegram.

    Background
    ==========

    Telegram is a cloud-based mobile and desktop messaging app with a focus
    on security and speed.

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

    -------------------------------------------------------------------
    Package / Vulnerable / Unaffected
    -------------------------------------------------------------------
    1 net-im/telegram-desktop < 2.4.11 >= 2.4.11
    2 net-im/telegram-desktop-bin
    < 2.4.11 >= 2.4.11
    -------------------------------------------------------------------
    2 affected packages

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

    It was discovered that Telegram failed to invalidate a recently active
    session.

    Impact
    ======

    Please review the referenced CVE identifiers for details.

    Workaround
    ==========

    There is no known workaround at this time.

    Resolution
    ==========

    All Telegram users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=net-im/telegram-desktop-2.4.11"

    All Telegram binary users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot -v ">=net-im/telegram-desktop-bin-2.4.11"

    References
    ==========

    [ 1 ] CVE-2021-27351
    https://nvd.nist.gov/vuln/detail/CVE-2021-27351

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

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

    https://security.gentoo.org/glsa/202105-07

    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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