Ubuntu 3995-2: Keepalived vulnerability

    Date28 May 2019
    CategoryUbuntu
    19
    Posted ByLinuxSecurity Advisories
    Keepalived could be made to crash or run programs if it received specially crafted network traffic.
    ==========================================================================
    Ubuntu Security Notice USN-3995-2
    May 28, 2019
    
    keepalived vulnerability
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 14.04 ESM
    - Ubuntu 12.04 ESM
    
    Summary:
    
    Keepalived could be made to crash or run programs if it received
    specially crafted network traffic.
    
    Software Description:
    - keepalived: Failover and monitoring daemon for LVS clusters
    
    Details:
    
    USN-3995-1 fixed a vulnerability in keepalived. This update provides
    the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.
    
    Original advisory details:
    
     It was discovered that Keepalived incorrectly handled certain HTTP
     status response codes. A remote attacker could use this issue to cause
     Keepalived to crash, resulting in a denial of service, or possibly
     execute arbitrary code.
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 14.04 ESM:
      keepalived                      1:1.2.7-1ubuntu1+esm1
    
    Ubuntu 12.04 ESM:
      keepalived                      1:1.2.2-3ubuntu1.2
    
    In general, a standard system update will make all the necessary
    changes.
    
    References:
      https://usn.ubuntu.com/usn/usn-3995-2
      https://usn.ubuntu.com/usn/usn-3995-1
      CVE-2018-19115
    
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