Linux Security
    Linux Security
    Linux Security

    Ubuntu 4573-1: Vino vulnerabilities

    Date
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    Several security issues were fixed in Vino.
    ==========================================================================
    Ubuntu Security Notice USN-4573-1
    October 07, 2020
    
    vino vulnerabilities
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 20.04 LTS
    - Ubuntu 18.04 LTS
    - Ubuntu 16.04 LTS
    
    Summary:
    
    Several security issues were fixed in Vino.
    
    Software Description:
    - vino: VNC server for GNOME
    
    Details:
    
    Nicolas Ruff discovered that Vino incorrectly handled large ClientCutText
    messages. A remote attacker could use this issue to cause the server to
    crash, resulting in a denial of service. (CVE-2014-6053)
    
    It was discovered that Vino incorrectly handled certain packet lengths. A
    remote attacker could possibly use this issue to obtain sensitive
    information, cause a denial of service, or execute arbitrary code.
    (CVE-2018-7225)
    
    Pavel Cheremushkin discovered that an information disclosure vulnerability
    existed in Vino when sending a ServerCutText message. An attacker could
    possibly use this issue to expose sensitive information. (CVE-2019-15681)
    
    It was discovered that Vino incorrectly handled region clipping. A remote
    attacker could possibly use this issue to cause Vino to crash, resulting in
    a denial of service. (CVE-2020-14397)
    
    It was discovered that Vino incorrectly handled encodings. A remote
    attacker could use this issue to cause Vino to crash, resulting in a denial
    of service, or possibly execute arbitrary code. (CVE-2020-14402,
    CVE-2020-14403, CVE-2020-14404)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 20.04 LTS:
      vino                            3.22.0-5ubuntu2.1
    
    Ubuntu 18.04 LTS:
      vino                            3.22.0-3ubuntu1.1
    
    Ubuntu 16.04 LTS:
      vino                            3.8.1-0ubuntu9.3
    
    After a standard system update you need to restart your session to make all
    the necessary changes.
    
    References:
      https://usn.ubuntu.com/4573-1
      CVE-2014-6053, CVE-2018-7225, CVE-2019-15681, CVE-2020-14397,
      CVE-2020-14402, CVE-2020-14403, CVE-2020-14404
    
    Package Information:
      https://launchpad.net/ubuntu/+source/vino/3.22.0-5ubuntu2.1
      https://launchpad.net/ubuntu/+source/vino/3.22.0-3ubuntu1.1
      https://launchpad.net/ubuntu/+source/vino/3.8.1-0ubuntu9.3
    
    

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