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    ArchLinux: 202101-5: firefox: arbitrary code execution

    Date 10 Jan 2021
    331
    Posted By LinuxSecurity Advisories
    The package firefox before version 84.0.2-1 is vulnerable to arbitrary code execution.
    Arch Linux Security Advisory ASA-202101-5
    =========================================
    
    Severity: Critical
    Date    : 2021-01-08
    CVE-ID  : CVE-2020-16044
    Package : firefox
    Type    : arbitrary code execution
    Remote  : Yes
    Link    : https://security.archlinux.org/AVG-1413
    
    Summary
    =======
    
    The package firefox before version 84.0.2-1 is vulnerable to arbitrary
    code execution.
    
    Resolution
    ==========
    
    Upgrade to 84.0.2-1.
    
    # pacman -Syu "firefox>=84.0.2-1"
    
    The problem has been fixed upstream in version 84.0.2.
    
    Workaround
    ==========
    
    None.
    
    Description
    ===========
    
    A security issue was found in Firefox before 84.0.2. A malicious peer
    could have modified a COOKIE-ECHO chunk in a SCTP packet in a way that
    potentially resulted in a use-after-free. Mozilla presumes that with
    enough effort it could have been exploited to run arbitrary code.
    
    Impact
    ======
    
    A remote attacker might be able to execute arbitrary code via a crafted
    SCTP packet.
    
    References
    ==========
    
    https://www.mozilla.org/en-US/security/advisories/mfsa2021-01/#CVE-2020-16044
    https://bugzilla.mozilla.org/show_bug.cgi?id=1683964
    https://hg.mozilla.org/mozilla-central/rev/08ba03dc8d4420e04e7c77fee3013e68180e6ead
    https://hg.mozilla.org/mozilla-central/rev/8c09f4813fc7e8f44605b6092262199bff15cdd7
    https://hg.mozilla.org/mozilla-central/rev/5991645a87d2abf289686d09d943229c9e3e54b5
    https://security.archlinux.org/CVE-2020-16044
    

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