Fedora 31: python36 2020-ea5bdbcc90

    Date 09 Jul 2020
    176
    Posted By LinuxSecurity Advisories
    # Python 3.6.11 Python 3.6.11 is the latest security fix release of Python 3.6. - bpo-39073: Disallow CR or LF in email.headerregistry.Address arguments to guard against header injection attacks. - bpo-38576: Disallow control characters in hostnames in http.client, addressing CVE-2019-18348. Such potentially malicious header injection URLs now cause a InvalidURL to be raised. -
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    Fedora Update Notification
    FEDORA-2020-ea5bdbcc90
    2020-07-10 01:00:39.961782
    --------------------------------------------------------------------------------
    
    Name        : python36
    Product     : Fedora 31
    Version     : 3.6.11
    Release     : 1.fc31
    URL         : https://www.python.org/
    Summary     : Version 3.6 of the Python interpreter
    Description :
    Python 3.6 package for developers.
    
    This package exists to allow developers to test their code against an older
    version of Python. This is not a full Python stack and if you wish to run
    your applications with Python 3.6, see other distributions
    that support it, such as CentOS or RHEL with Software Collections
    or older Fedora releases.
    
    --------------------------------------------------------------------------------
    Update Information:
    
    # Python 3.6.11  Python 3.6.11 is the latest security fix release of Python 3.6.
    - bpo-39073: Disallow CR or LF in email.headerregistry.Address arguments to
    guard against header injection attacks. - bpo-38576: Disallow control characters
    in hostnames in http.client, addressing CVE-2019-18348. Such potentially
    malicious header injection URLs now cause a InvalidURL to be raised. -
    bpo-39503: CVE-2020-8492: The AbstractBasicAuthHandler class of the
    urllib.request module uses an inefficient regular expression which can be
    exploited by an attacker to cause a denial of service. Fix the regex to prevent
    the catastrophic backtracking. Vulnerability reported by Ben Caller and Matt
    Schwager.  Also fix a regression with
    `distutils.sysconfig.get_config_var('LIBPL')` value in Fedora specific patches.
    --------------------------------------------------------------------------------
    ChangeLog:
    
    * Wed Jul  1 2020 Petr Viktorin  - 3.6.11-1
    - Update to 3.6.11 final
    --------------------------------------------------------------------------------
    References:
    
      [ 1 ] Bug #1727276 - CVE-2019-18348 python: CRLF injection via the host part of the url passed to urlopen()
            https://bugzilla.redhat.com/show_bug.cgi?id=1727276
      [ 2 ] Bug #1809065 - CVE-2020-8492 python: wrong backtracking in urllib.request.AbstractBasicAuthHandler allows for a ReDoS
            https://bugzilla.redhat.com/show_bug.cgi?id=1809065
    --------------------------------------------------------------------------------
    
    This update can be installed with the "dnf" update program. Use
    su -c 'dnf upgrade --advisory FEDORA-2020-ea5bdbcc90' at the command
    line. For more information, refer to the dnf documentation available at
    https://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label
    
    All packages are signed with the Fedora Project GPG key. More details on the
    GPG keys used by the Fedora Project can be found at
    https://fedoraproject.org/keys
    --------------------------------------------------------------------------------
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