Ubuntu 1634-1: Python Keyring vulnerabilities

    Date20 Nov 2012
    CategoryUbuntu
    39
    Posted ByLinuxSecurity Advisories
    Several security issues were fixed in Python Keyring.
    ==========================================================================
    Ubuntu Security Notice USN-1634-1
    November 20, 2012
    
    python-keyring vulnerabilities
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 12.10
    - Ubuntu 12.04 LTS
    - Ubuntu 11.10
    
    Summary:
    
    Several security issues were fixed in Python Keyring.
    
    Software Description:
    - python-keyring: store and access your passwords safely
    
    Details:
    
    Dwayne Litzenberger discovered that Python Keyring's CryptedFileKeyring
    file format used weak cryptography. A local attacker may use this issue to
    brute-force CryptedFileKeyring keyring files. This issue only affected
    Ubuntu 11.10 and Ubuntu 12.04 LTS. (CVE-2012-4571)
    
    It was discovered that Python Keyring created keyring files with insecure
    permissions. A local attacker could use this issue to access keyring files
    belonging to other users.
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 12.10:
      python-keyring                  0.9.2-1ubuntu0.2
      python3-keyring                 0.9.2-1ubuntu0.2
    
    Ubuntu 12.04 LTS:
      python-keyring                  0.9.2-0ubuntu0.12.04.2
      python3-keyring                 0.9.2-0ubuntu0.12.04.2
    
    Ubuntu 11.10:
      python-keyring                  0.9.2-0ubuntu0.11.10.2
    
    In general, a standard system update will make all the necessary changes.
    This update uses a new upstream release, which includes additional bug
    fixes, and will migrate existing keyring files to the new format upon first
    use.
    
    References:
      http://www.ubuntu.com/usn/usn-1634-1
      CVE-2012-4571, https://launchpad.net/bugs/1004845
    
    Package Information:
      https://launchpad.net/ubuntu/+source/python-keyring/0.9.2-1ubuntu0.2
      https://launchpad.net/ubuntu/+source/python-keyring/0.9.2-0ubuntu0.12.04.2
      https://launchpad.net/ubuntu/+source/python-keyring/0.9.2-0ubuntu0.11.10.2
    
    
    
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