Ubuntu 4174-1: HAproxy vulnerability

    Date05 Nov 2019
    257
    Posted ByLinuxSecurity Advisories
    HAproxy would allow unintended access if ii received specially crafted HTTP request.
    ==========================================================================
    Ubuntu Security Notice USN-4174-1
    November 05, 2019
    
    haproxy vulnerability
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 19.10
    - Ubuntu 19.04
    - Ubuntu 18.04 LTS
    - Ubuntu 16.04 LTS
    
    Summary:
    
    HAproxy would allow unintended access if ii received specially crafted
    HTTP request.
    
    Software Description:
    - haproxy: fast and reliable load balancing reverse proxy
    
    Details:
    
    It was discovered that HAproxy incorrectly handled certain HTTP requests.
    An attacker could possibly use this issue to a privilege escalation
    (Request Smuggling).
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 19.10:
      haproxy                         2.0.5-1ubuntu0.2
    
    Ubuntu 19.04:
      haproxy                         1.8.19-1ubuntu1.2
    
    Ubuntu 18.04 LTS:
      haproxy                         1.8.8-1ubuntu0.7
    
    Ubuntu 16.04 LTS:
      haproxy                         1.6.3-1ubuntu0.3
    
    In general, a standard system update will make all the necessary changes.
    
    References:
      https://usn.ubuntu.com/4174-1
      CVE-2019-18277
    
    Package Information:
      https://launchpad.net/ubuntu/+source/haproxy/2.0.5-1ubuntu0.2
      https://launchpad.net/ubuntu/+source/haproxy/1.8.19-1ubuntu1.2
      https://launchpad.net/ubuntu/+source/haproxy/1.8.8-1ubuntu0.7
      https://launchpad.net/ubuntu/+source/haproxy/1.6.3-1ubuntu0.3
    

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