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  • [gentoo-announce] [ GLSA 202210-28 ] exif: Denial of Service

    From glsamaker@gentoo.org@21:1/5 to All on Mon Oct 31 03:10:02 2022
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    Gentoo Linux Security Advisory GLSA 202210-28
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    https://security.gentoo.org/
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    Severity: Low
    Title: exif: Denial of Service
    Date: October 31, 2022
    Bugs: #783522
    ID: 202210-28

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    Synopsis
    ========

    A vulnerability has been discovered in exif which could result in denial
    of service.

    Background
    ==========

    libexif is a library for parsing, editing and saving Exif metadata from
    images. exif is a small command line interface for libexif.

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

    -------------------------------------------------------------------
    Package / Vulnerable / Unaffected
    -------------------------------------------------------------------
    1 media-gfx/exif < 0.6.22 >= 0.6.22

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

    There is a bug in exif's XML output format which can result in a null
    pointer dereference when outputting crafted JPEG EXIF data.

    Impact
    ======

    A crafted JPEG image can trigger a denial of service in the form of a
    null pointer dereference.

    Workaround
    ==========

    There is no known workaround at this time.

    Resolution
    ==========

    All exif users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=media-gfx/exif-0.6.22"

    References
    ==========

    [ 1 ] CVE-2021-27815
    https://nvd.nist.gov/vuln/detail/CVE-2021-27815

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

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

    https://security.gentoo.org/glsa/202210-28

    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 2022 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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