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    ArchLinux: 202009-15: lib32-zeromq: denial of service

    Date
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    The package lib32-zeromq before version 4.3.3-1 is vulnerable to denial of service.
    Arch Linux Security Advisory ASA-202009-15
    ==========================================
    
    Severity: High
    Date    : 2020-09-26
    CVE-ID  : CVE-2020-15166
    Package : lib32-zeromq
    Type    : denial of service
    Remote  : Yes
    Link    : https://security.archlinux.org/AVG-1220
    
    Summary
    =======
    
    The package lib32-zeromq before version 4.3.3-1 is vulnerable to denial
    of service.
    
    Resolution
    ==========
    
    Upgrade to 4.3.3-1.
    
    # pacman -Syu "lib32-zeromq>=4.3.3-1"
    
    The problem has been fixed upstream in version 4.3.3.
    
    Workaround
    ==========
    
    None.
    
    Description
    ===========
    
    A denial of service has been found in libzmq before 4.3.3, allowing
    unauthenticated clients to prevent legitimate clients from exchange any
    message with a CURVE/ZAP-protected server.
    
    Impact
    ======
    
    A remote attacker might be able to cause a denial of service through a
    malicious connection.
    
    References
    ==========
    
    https://github.com/zeromq/libzmq/security/advisories/GHSA-25wp-cf8g-938m
    https://github.com/zeromq/libzmq/pull/3913/commits/e7f0090b161ce6344f6bd35009816a925c070b09
    https://oss-fuzz.com/testcase-detail/5707174518194176
    https://security.archlinux.org/CVE-2020-15166
    

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