Linux Security
    Linux Security
    Linux Security

    Ubuntu 4634-1: OpenLDAP vulnerabilities

    Date 17 Nov 2020
    2017
    Posted By LinuxSecurity Advisories
    OpenLDAP could be made to crash if it received specially crafted network traffic.
    ==========================================================================
    Ubuntu Security Notice USN-4634-1
    November 17, 2020
    
    openldap vulnerabilities
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 20.10
    - Ubuntu 20.04 LTS
    - Ubuntu 18.04 LTS
    - Ubuntu 16.04 LTS
    
    Summary:
    
    OpenLDAP could be made to crash if it received specially crafted network
    traffic.
    
    Software Description:
    - openldap: Lightweight Directory Access Protocol
    
    Details:
    
    It was discovered that OpenLDAP incorrectly handled certain malformed
    inputs. A remote attacker could possibly use this issue to cause OpenLDAP
    to crash, resulting in a denial of service.
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 20.10:
      slapd                           2.4.53+dfsg-1ubuntu1.2
    
    Ubuntu 20.04 LTS:
      slapd                           2.4.49+dfsg-2ubuntu1.5
    
    Ubuntu 18.04 LTS:
      slapd                           2.4.45+dfsg-1ubuntu1.8
    
    Ubuntu 16.04 LTS:
      slapd                           2.4.42+dfsg-2ubuntu3.11
    
    In general, a standard system update will make all the necessary changes.
    
    References:
      https://usn.ubuntu.com/4634-1
      CVE-2020-25709, CVE-2020-25710
    
    Package Information:
      https://launchpad.net/ubuntu/+source/openldap/2.4.53+dfsg-1ubuntu1.2
      https://launchpad.net/ubuntu/+source/openldap/2.4.49+dfsg-2ubuntu1.5
      https://launchpad.net/ubuntu/+source/openldap/2.4.45+dfsg-1ubuntu1.8
      https://launchpad.net/ubuntu/+source/openldap/2.4.42+dfsg-2ubuntu3.11
    
    

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