Debian: DSA-3871-1: zookeeper security update

    Date01 Jun 2017
    88
    Posted ByLinuxSecurity Advisories
    It was discovered that Zookeeper, a service for maintaining configuration information, didn't restrict access to the computationally expensive wchp/wchc commands which could result in denial of service by elevated CPU consumption.
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    Debian Security Advisory DSA-3871-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
    https://www.debian.org/security/                       Moritz Muehlenhoff
    June 01, 2017                         https://www.debian.org/security/faq
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    Package        : zookeeper
    CVE ID         : CVE-2017-5637
    
    It was discovered that Zookeeper, a service for maintaining
    configuration information, didn't restrict access to the computationally
    expensive wchp/wchc commands which could result in denial of service by
    elevated CPU consumption.
    
    This update disables those two commands by default. The new
    configuration option "4lw.commands.whitelist" can be used to whitelist
    commands selectively (and the full set of commands can be restored
    with '*')
    
    For the stable distribution (jessie), this problem has been fixed in
    version 3.4.5+dfsg-2+deb8u2.
    
    For the unstable distribution (sid), this problem will be fixed soon.
    
    We recommend that you upgrade your zookeeper packages.
    
    Further information about Debian Security Advisories, how to apply
    these updates to your system and frequently asked questions can be
    found at: https://www.debian.org/security/
    
    Mailing list: This email address is being protected from spambots. You need JavaScript enabled to view it.
    

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