Ubuntu 4030-1: web2py vulnerabilities

    Date21 Jun 2019
    CategoryUbuntu
    726
    Posted ByLinuxSecurity Advisories
    Several security issues were fixed in web2py.
    ============================================================
    
    ==============
    Ubuntu Security Notice USN-4030-1
    June 21, 2019
    
    web2py vulnerabilities
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 16.04 LTS
    
    Summary:
    
    Several security issues were fixed in web2py.
    
    Software Description:
    - web2py: High-level Python web development framework
    
    Details:
    
    It was discovered that web2py does not properly check denied hosts before 
    verifying passwords. An attacker could possibly use this issue to perform
    brute-force attacks. (CVE-2016-10321)
    
    It was discovered that web2py allows remote attackers to obtain
    environment variable values. An attacker could possibly use this issue to
    gain administrative access. (CVE-2016-3952)
    
    It was discovered that web2py uses a hardcoded encryption key. An
    attacker could possibly use this issue to execute arbitrary code.
    (CVE-2016-3953, CVE-2016-3954, CVE-2016-3957)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 16.04 LTS:
      python-gluon                    2.12.3-1ubuntu0.1
      python-web2py                   2.12.3-1ubuntu0.1
    
    In general, a standard system update will make all the necessary changes.
    
    References:
      https://usn.ubuntu.com/4030-1
      CVE-2016-10321, CVE-2016-3952, CVE-2016-3953, CVE-2016-3954,
      CVE-2016-3957
    
    Package Information:
      https://launchpad.net/ubuntu/+source/web2py/2.12.3-1ubuntu0.1
    
    
    
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