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    Ubuntu 4352-2: OpenLDAP vulnerability

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    OpenLDAP could be made to crash if it received specially crafted network traffic.
    ==========================================================================
    Ubuntu Security Notice USN-4352-2
    May 06, 2020
    
    openldap vulnerability
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 14.04 ESM
    - Ubuntu 12.04 ESM
    
    Summary:
    
    OpenLDAP could be made to crash if it received specially crafted
    network traffic.
    
    Software Description:
    - openldap: Lightweight Directory Access Protocol
    
    Details:
    
    USN-4352-1 fixed a vulnerability in OpenLDAP. This update provides
    the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.
    
    Original advisory details:
    
     It was discovered that OpenLDAP incorrectly handled certain queries. A
     remote attacker could possibly use this issue to cause OpenLDAP to consume
     resources, resulting in a denial of service.
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 14.04 ESM:
      slapd                           2.4.31-1+nmu2ubuntu8.5+esm2
    
    Ubuntu 12.04 ESM:
      slapd                           2.4.28-1.1ubuntu4.10
    
    In general, a standard system update will make all the necessary changes.
    
    References:
      https://usn.ubuntu.com/4352-2
      https://usn.ubuntu.com/4352-1
      CVE-2020-12243
    

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