Ubuntu 1783-1: Bind vulnerability

    Date29 Mar 2013
    CategoryUbuntu
    46
    Posted ByLinuxSecurity Advisories
    Bind could be made to consume memory or crash if it received specially crafted network traffic.
    ==========================================================================
    Ubuntu Security Notice USN-1783-1
    March 29, 2013
    
    bind9 vulnerability
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 12.10
    - Ubuntu 12.04 LTS
    - Ubuntu 11.10
    - Ubuntu 10.04 LTS
    
    Summary:
    
    Bind could be made to consume memory or crash if it received specially
    crafted network traffic.
    
    Software Description:
    - bind9: Internet Domain Name Server
    
    Details:
    
    Matthew Horsfall discovered that Bind incorrectly handled regular
    expression checking. A remote attacker could use this flaw to cause Bind to
    consume an excessive amount of memory, possibly resulting in a denial of
    service. This issue was corrected by disabling RDATA regular expression
    syntax checking.
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 12.10:
      bind9                           1:9.8.1.dfsg.P1-4.2ubuntu3.2
      libdns81                        1:9.8.1.dfsg.P1-4.2ubuntu3.2
    
    Ubuntu 12.04 LTS:
      bind9                           1:9.8.1.dfsg.P1-4ubuntu0.6
      libdns81                        1:9.8.1.dfsg.P1-4ubuntu0.6
    
    Ubuntu 11.10:
      bind9                           1:9.7.3.dfsg-1ubuntu4.6
      libdns69                        1:9.7.3.dfsg-1ubuntu4.6
    
    Ubuntu 10.04 LTS:
      bind9                           1:9.7.0.dfsg.P1-1ubuntu0.9
      libdns64                        1:9.7.0.dfsg.P1-1ubuntu0.9
    
    In general, a standard system update will make all the necessary changes.
    
    References:
      http://www.ubuntu.com/usn/usn-1783-1
      CVE-2013-2266
    
    Package Information:
      https://launchpad.net/ubuntu/+source/bind9/1:9.8.1.dfsg.P1-4.2ubuntu3.2
      https://launchpad.net/ubuntu/+source/bind9/1:9.8.1.dfsg.P1-4ubuntu0.6
      https://launchpad.net/ubuntu/+source/bind9/1:9.7.3.dfsg-1ubuntu4.6
      https://launchpad.net/ubuntu/+source/bind9/1:9.7.0.dfsg.P1-1ubuntu0.9
    
    
    
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