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  • [gentoo-announce] [ GLSA 202310-11 ] less: Denial service

    From glsamaker@gentoo.org@21:1/5 to All on Tue Oct 10 08:50:01 2023
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    Gentoo Linux Security Advisory GLSA 202310-11
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    https://security.gentoo.org/
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    Severity: Normal
    Title: less: Denial service
    Date: October 10, 2023
    Bugs: #893530
    ID: 202310-11

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    Synopsis
    ========

    A filtering bypass in less may allow denial of service.

    Background
    ==========

    less is a pager and text file viewer.

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

    Package Vulnerable Unaffected
    ------------- ------------ ------------
    sys-apps/less < 608-r2 >= 608-r2

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

    less suffered from a flaw in its terminal escape sequence handling which
    made its filtering incomplete.

    Impact
    ======

    Malicious input could clear the terminal output or otherwise manipulate
    it with faked interactions.

    Workaround
    ==========

    There is no known workaround at this time.

    Resolution
    ==========

    All less users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=sys-apps/less-608-r2"

    References
    ==========

    [ 1 ] CVE-2022-46663
    https://nvd.nist.gov/vuln/detail/CVE-2022-46663

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

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

    https://security.gentoo.org/glsa/202310-11

    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 2023 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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