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    Gentoo: GLSA-202008-05: gThumb: Arbitrary code execution

    Date
    230
    Posted By
    A buffer overflow in gThumb might allow remote attacker(s) to execute arbitrary code.
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    Gentoo Linux Security Advisory                           GLSA 202008-05
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                                               https://security.gentoo.org/
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     Severity: Normal
        Title: gThumb: Arbitrary code execution
         Date: August 08, 2020
         Bugs: #712932
           ID: 202008-05
    
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    Synopsis
    ========
    
    A buffer overflow in gThumb might allow remote attacker(s) to execute
    arbitrary code.
    
    Background
    ==========
    
    gThumb is an image viewer and browser for GNOME.
    
    Affected packages
    =================
    
        -------------------------------------------------------------------
         Package              /     Vulnerable     /            Unaffected
        -------------------------------------------------------------------
      1  media-gfx/gthumb             < 3.10.0                  >= 3.10.0
    
    Description
    ===========
    
    A heap-based buffer overflow in gThumb's
    _cairo_image_surface_create_from_jpeg() function, located in
    extensions/cairo_io/cairo-image-surface-jpeg.c was discovered.
    
    Impact
    ======
    
    A remote attacker could entice a user to open a specially crafted image
    file using gThumb, possibly resulting in execution of arbitrary code
    with the privileges of the process or a Denial of Service condition.
    
    Workaround
    ==========
    
    There is no known workaround at this time.
    
    Resolution
    ==========
    
    All gThumb users should upgrade to the latest version:
    
      # emerge --sync
      # emerge --ask --oneshot --verbose ">=media-gfx/gthumb-3.10.0"
    
    References
    ==========
    
    [ 1 ] CVE-2019-20326
          https://nvd.nist.gov/vuln/detail/CVE-2019-20326
    
    Availability
    ============
    
    This GLSA and any updates to it are available for viewing at
    the Gentoo Security Website:
    
     https://security.gentoo.org/glsa/202008-05
    
    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
    This email address is being protected from spambots. You need JavaScript enabled to view it. 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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