Ubuntu 1616-1: Python 3.1 vulnerabilities

    Date 24 Oct 2012
    Posted By LinuxSecurity Advisories
    Several security issues were fixed in Python 3.1.
    Ubuntu Security Notice USN-1616-1
    October 24, 2012
    python3.1 vulnerabilities
    A security issue affects these releases of Ubuntu and its derivatives:
    - Ubuntu 11.04
    - Ubuntu 10.04 LTS
    Several security issues were fixed in Python 3.1.
    Software Description:
    - python3.1: An interactive high-level object-oriented language (version
    It was discovered that Python would prepend an empty string to sys.path
    under certain circumstances. A local attacker with write access to the
    current working directory could exploit this to execute arbitrary code.
    This issue only affected Ubuntu 10.04 LTS. (CVE-2008-5983)
    It was discovered that the audioop module did not correctly perform input
    validation. If a user or automatated system were tricked into opening a
    crafted audio file, an attacker could cause a denial of service via
    application crash. These issues only affected Ubuntu 10.04 LTS.
    (CVE-2010-1634, CVE-2010-2089)
    It was discovered that Python distutils contained a race condition when
    creating the ~/.pypirc file. A local attacker could exploit this to obtain
    sensitive information. (CVE-2011-4944)
    It was discovered that SimpleXMLRPCServer did not properly validate its
    input when handling HTTP POST requests. A remote attacker could exploit
    this to cause a denial of service via excessive CPU utilization.
    It was discovered that Python was susceptible to hash algorithm attacks.
    An attacker could cause a denial of service under certian circumstances.
    This update adds the '-R' command line option and honors setting the
    PYTHONHASHSEED environment variable to 'random' to salt str and datetime
    objects with an unpredictable value. (CVE-2012-1150)
    Serhiy Storchaka discovered that the UTF16 decoder in Python did not
    properly reset internal variables after error handling. An attacker could
    exploit this to cause a denial of service via memory corruption.
    Update instructions:
    The problem can be corrected by updating your system to the following
    package versions:
    Ubuntu 11.04:
      python3.1                       3.1.3-1ubuntu1.2
      python3.1-minimal               3.1.3-1ubuntu1.2
    Ubuntu 10.04 LTS:
      python3.1                       3.1.2-0ubuntu3.2
      python3.1-minimal               3.1.2-0ubuntu3.2
    In general, a standard system update will make all the necessary changes.
      CVE-2008-5983, CVE-2010-1634, CVE-2010-2089, CVE-2011-4944,
      CVE-2012-0845, CVE-2012-1150, CVE-2012-2135
    Package Information:

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