Ubuntu 2048-1: curl vulnerability

    Date05 Dec 2013
    CategoryUbuntu
    31
    Posted ByLinuxSecurity Advisories
    Fraudulent security certificates could allow sensitive information to be exposed when accessing the Internet.
    ==========================================================================
    Ubuntu Security Notice USN-2048-1
    December 05, 2013
    
    curl vulnerability
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 13.10
    - Ubuntu 13.04
    - Ubuntu 12.10
    - Ubuntu 12.04 LTS
    - Ubuntu 10.04 LTS
    
    Summary:
    
    Fraudulent security certificates could allow sensitive information to
    be exposed when accessing the Internet.
    
    Software Description:
    - curl: HTTP, HTTPS, and FTP client and client libraries
    
    Details:
    
    Scott Cantor discovered that libcurl incorrectly verified CN and SAN name
    fields when digital signature verification was disabled. When libcurl is
    being used in this uncommon way by specific applications, an attacker could
    exploit this to perform a man in the middle attack to view sensitive
    information or alter encrypted communications.
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 13.10:
      libcurl3                        7.32.0-1ubuntu1.1
    
    Ubuntu 13.04:
      libcurl3                        7.29.0-1ubuntu3.3
    
    Ubuntu 12.10:
      libcurl3                        7.27.0-1ubuntu1.5
    
    Ubuntu 12.04 LTS:
      libcurl3                        7.22.0-3ubuntu4.4
    
    Ubuntu 10.04 LTS:
      libcurl3                        7.19.7-1ubuntu1.4
    
    In general, a standard system update will make all the necessary changes.
    
    References:
      http://www.ubuntu.com/usn/usn-2048-1
      CVE-2013-4545
    
    Package Information:
      https://launchpad.net/ubuntu/+source/curl/7.32.0-1ubuntu1.1
      https://launchpad.net/ubuntu/+source/curl/7.29.0-1ubuntu3.3
      https://launchpad.net/ubuntu/+source/curl/7.27.0-1ubuntu1.5
      https://launchpad.net/ubuntu/+source/curl/7.22.0-3ubuntu4.4
      https://launchpad.net/ubuntu/+source/curl/7.19.7-1ubuntu1.4
    
    
    
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