Ubuntu 2593-1: Dnsmasq vulnerability

    Date04 May 2015
    CategoryUbuntu
    83
    Posted ByLinuxSecurity Advisories
    Dnsmasq could be made to crash or expose sensitive information if it received specially crafted network traffic.
    ==========================================================================
    Ubuntu Security Notice USN-2593-1
    May 04, 2015
    
    dnsmasq vulnerability
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 15.04
    - Ubuntu 14.10
    - Ubuntu 14.04 LTS
    - Ubuntu 12.04 LTS
    
    Summary:
    
    Dnsmasq could be made to crash or expose sensitive information if it
    received specially crafted network traffic.
    
    Software Description:
    - dnsmasq: Small caching DNS proxy and DHCP/TFTP server
    
    Details:
    
    Nick Sampanis discovered that Dnsmasq incorrectly handled certain malformed
    DNS requests. A remote attacker could use this issue to cause Dnsmasq to
    crash, resulting in a denial of service, or possibly obtain sensitive
    information.
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 15.04:
      dnsmasq-base                    2.72-3ubuntu0.1
    
    Ubuntu 14.10:
      dnsmasq-base                    2.71-1ubuntu0.1
    
    Ubuntu 14.04 LTS:
      dnsmasq-base                    2.68-1ubuntu0.1
    
    Ubuntu 12.04 LTS:
      dnsmasq                         2.59-4ubuntu0.2
      dnsmasq-base                    2.59-4ubuntu0.2
      dnsmasq-utils                   2.59-4ubuntu0.2
    
    After a standard system update you need to reboot your computer to make
    all the necessary changes.
    
    References:
      http://www.ubuntu.com/usn/usn-2593-1
      CVE-2015-3294
    
    Package Information:
      https://launchpad.net/ubuntu/+source/dnsmasq/2.72-3ubuntu0.1
      https://launchpad.net/ubuntu/+source/dnsmasq/2.71-1ubuntu0.1
      https://launchpad.net/ubuntu/+source/dnsmasq/2.68-1ubuntu0.1
      https://launchpad.net/ubuntu/+source/dnsmasq/2.59-4ubuntu0.2
    
    
    
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