Debian: DSA-3357-1: vzctl security update

    Date13 Sep 2015
    CategoryDebian
    54
    Posted ByLinuxSecurity Advisories
    It was discovered that vzctl, a set of control tools for the OpenVZ server virtualisation solution, determined the storage layout of containers based on the presense of an XML file inside the container. An attacker with local root privileges in a simfs-based container
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    Debian Security Advisory DSA-3357-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
    	
    https://www.debian.org/security/                       Moritz Muehlenhoff
    September 13, 2015                    https://www.debian.org/security/faq
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    Package        : vzctl
    CVE ID         : not yet available
    
    It was discovered that vzctl, a set of control tools for the OpenVZ
    server virtualisation solution, determined the storage layout of
    containers based on the presense of an XML file inside the container.
    An attacker with local root privileges in a simfs-based container
    could gain control over ploop-based containers. Further information on
    the prerequites of such an attack can be found at
    https://src.openvz.org/projects/OVZL/repos/vzctl/commits/9e98ea630ac0e88b44e3e23c878a5166aeb74e1c
    
    The oldstable distribution (wheezy) is not affected.
    
    For the stable distribution (jessie), this problem has been fixed in
    version 4.8-1+deb8u2. During the update existing configurations are
    automatically updated.
    
    For the testing distribution (stretch), this problem has been fixed
    in version 4.9.4-2.
    
    For the unstable distribution (sid), this problem has been fixed in
    version 4.9.4-2.
    
    We recommend that you upgrade your vzctl 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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