Ubuntu 3476-2: postgresql-common vulnerabilities

    Date27 Nov 2017
    CategoryUbuntu
    137
    Posted ByLinuxSecurity Advisories
    postgresql-common could be made to overwrite files as the administrator.
    ==========================================================================
    Ubuntu Security Notice USN-3476-2
    November 27, 2017
    
    postgresql-common vulnerabilities
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 12.04 ESM
    
    Summary:
    
    postgresql-common could be made to overwrite files as the
    administrator.
    
    Software Description:
    - postgresql-common: PostgreSQL database-cluster manager
    
    Details:
    
    USN-3476-1 fixed two vulnerabilities in postgresql-common. This update
    provides the corresponding update for Ubuntu 12.04 ESM.
    
    Original advisory details:
    
     Dawid Golunski discovered that the postgresql-common pg_ctlcluster
     script incorrectly handled symlinks. A local attacker could possibly
     use this issue to escalate privileges. (CVE-2016-1255)
    
     It was discovered that the postgresql-common helper scripts
     incorrectly handled symlinks. A local attacker could possibly use this
     issue to escalate privileges. (CVE-2017-8806)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 12.04 ESM:
      postgresql-common               129ubuntu1.2
    
    In general, a standard system update will make all the necessary
    changes.
    
    References:
      https://www.ubuntu.com/usn/usn-3476-2
      https://www.ubuntu.com/usn/usn-3476-1
      CVE-2016-1255, CVE-2017-8806
    
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