Linux Security
    Linux Security
    Linux Security

    Gentoo: GLSA-202101-21: Flatpak: Sandbox escape

    Date 24 Jan 2021
    148
    Posted By LinuxSecurity Advisories
    A vulnerability was discovered in Flatpak which could allow a remote attacker to execute arbitrary code.
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    Gentoo Linux Security Advisory                           GLSA 202101-21
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                               https://security.gentoo.org/
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    
     Severity: Normal
        Title: Flatpak: Sandbox escape
         Date: January 25, 2021
         Bugs: #765457
           ID: 202101-21
    
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    
    Synopsis
    ========
    
    A vulnerability was discovered in Flatpak which could allow a remote
    attacker to execute arbitrary code.
    
    Background
    ==========
    
    Flatpak is a Linux application sandboxing and distribution framework.
    
    Affected packages
    =================
    
        -------------------------------------------------------------------
         Package              /     Vulnerable     /            Unaffected
        -------------------------------------------------------------------
      1  sys-apps/flatpak             < 1.10.0                  >= 1.10.0
    
    Description
    ===========
    
    A bug was discovered in the flatpak-portal service that can allow
    sandboxed applications to execute arbitrary code on the host system (a
    sandbox escape).
    
    Impact
    ======
    
    A remote attacker could entice a user to open a specially crafted
    Flatpak app possibly resulting in execution of arbitrary code with the
    privileges of the process or a Denial of Service condition.
    
    Workaround
    ==========
    
    As a workaround, this vulnerability can be mitigated by preventing the
    flatpak-portal service from starting, but that mitigation will prevent
    many Flatpak apps from working correctly. It is highly recommended to
    upgrade.
    
    Resolution
    ==========
    
    All Flatpak users should upgrade to the latest version:
    
      # emerge --sync
      # emerge --ask --oneshot --verbose ">=sys-apps/flatpak-1.10.0"
    
    References
    ==========
    
    [ 1 ] CVE-2021-21261
          https://nvd.nist.gov/vuln/detail/CVE-2021-21261
    
    Availability
    ============
    
    This GLSA and any updates to it are available for viewing at
    the Gentoo Security Website:
    
     https://security.gentoo.org/glsa/202101-21
    
    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 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
    

    LinuxSecurity Poll

    Which is the best secure Linux distro for pentesting?

    No answer selected. Please try again.
    Please select either existing option or enter your own, however not both.
    Please select minimum 0 answer(s) and maximum 3 answer(s).
    /main-polls/50-which-is-the-best-secure-linux-distro-for-pentesting?task=poll.vote&format=json
    50
    radio
    [{"id":"174","title":"Kali Linux","votes":"9","type":"x","order":"1","pct":56.25,"resources":[]},{"id":"175","title":"Parrot OS","votes":"7","type":"x","order":"2","pct":43.75,"resources":[]},{"id":"176","title":"BlackArch Linux","votes":"0","type":"x","order":"3","pct":0,"resources":[]}] ["#ff5b00","#4ac0f2","#b80028","#eef66c","#60bb22","#b96a9a","#62c2cc"] ["rgba(255,91,0,0.7)","rgba(74,192,242,0.7)","rgba(184,0,40,0.7)","rgba(238,246,108,0.7)","rgba(96,187,34,0.7)","rgba(185,106,154,0.7)","rgba(98,194,204,0.7)"] 350

    Please vote first in order to view vote results.


    VIEW MORE POLLS

    bottom 200

    Please enable / Bitte aktiviere JavaScript!
    Veuillez activer / Por favor activa el Javascript![ ? ]

    We use cookies to provide and improve our services. By using our site, you consent to our Cookie Policy.