Ubuntu 2404-1: libvirt vulnerabilities

    Date11 Nov 2014
    CategoryUbuntu
    45
    Posted ByLinuxSecurity Advisories
    Several security issues were fixed in libvirt.
    ==========================================================================
    Ubuntu Security Notice USN-2404-1
    November 11, 2014
    
    libvirt vulnerabilities
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 14.10
    - Ubuntu 14.04 LTS
    
    Summary:
    
    Several security issues were fixed in libvirt.
    
    Software Description:
    - libvirt: Libvirt virtualization toolkit
    
    Details:
    
    Pavel Hrdina discovered that libvirt incorrectly handled locking when
    processing the virConnectListAllDomains command. An attacker could use this
    issue to cause libvirtd to hang, resulting in a denial of service.
    (CVE-2014-3657)
    
    Eric Blake discovered that libvirt incorrectly handled permissions when
    processing the qemuDomainFormatXML command. An attacker with read-only
    privileges could possibly use this to gain access to certain information
    from the domain xml file. (CVE-2014-7823)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 14.10:
      libvirt-bin                     1.2.8-0ubuntu11.1
      libvirt0                        1.2.8-0ubuntu11.1
    
    Ubuntu 14.04 LTS:
      libvirt-bin                     1.2.2-0ubuntu13.1.7
      libvirt0                        1.2.2-0ubuntu13.1.7
    
    After a standard system update you need to reboot your computer to make
    all the necessary changes.
    
    References:
      http://www.ubuntu.com/usn/usn-2404-1
      CVE-2014-3657, CVE-2014-7823
    
    Package Information:
      https://launchpad.net/ubuntu/+source/libvirt/1.2.8-0ubuntu11.1
      https://launchpad.net/ubuntu/+source/libvirt/1.2.2-0ubuntu13.1.7
    
    
    
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