Ubuntu 4003-1: Qt vulnerabilities

    Date03 Jun 2019
    CategoryUbuntu
    22
    Posted ByLinuxSecurity Advisories
    Several security issues were fixed in Qt.
    ==========================================================================
    Ubuntu Security Notice USN-4003-1
    June 03, 2019
    
    qtbase-opensource-src vulnerabilities
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 18.10
    - Ubuntu 18.04 LTS
    - Ubuntu 16.04 LTS
    
    Summary:
    
    Several security issues were fixed in Qt.
    
    Software Description:
    - qtbase-opensource-src: Qt 5 libraries
    
    Details:
    
    It was discovered that Qt incorrectly handled certain XML documents. A
    remote attacker could use this issue with a specially crafted XML document
    to cause Qt to crash, resulting in a denial of service, or possibly execute
    arbitrary code. (CVE-2018-15518)
    
    It was discovered that Qt incorrectly handled certain GIF images. A remote
    attacker could use this issue with a specially crafted GIF image to cause
    Qt to crash, resulting in a denial of service, or possibly execute
    arbitrary code. (CVE-2018-19870)
    
    It was discovered that Qt incorrectly handled certain BMP images. A remote
    attacker could use this issue with a specially crafted BMP image to cause
    Qt to crash, resulting in a denial of service, or possibly execute
    arbitrary code. (CVE-2018-19873)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 18.10:
      libqt5core5a                    5.11.1+dfsg-7ubuntu3.1
      libqt5gui5                      5.11.1+dfsg-7ubuntu3.1
    
    Ubuntu 18.04 LTS:
      libqt5core5a                    5.9.5+dfsg-0ubuntu2.1
      libqt5gui5                      5.9.5+dfsg-0ubuntu2.1
    
    Ubuntu 16.04 LTS:
      libqt5core5a                    5.5.1+dfsg-16ubuntu7.6
      libqt5gui5                      5.5.1+dfsg-16ubuntu7.6
    
    After a standard system update you need to restart yoursession to make all
    the necessary changes.
    
    References:
      https://usn.ubuntu.com/usn/usn-4003-1
      CVE-2018-15518, CVE-2018-19870, CVE-2018-19873
    
    Package Information:
      https://launchpad.net/ubuntu/+source/qtbase-opensource-src/5.11.1+dfsg-7ubuntu3.1
      https://launchpad.net/ubuntu/+source/qtbase-opensource-src/5.9.5+dfsg-0ubuntu2.1
      https://launchpad.net/ubuntu/+source/qtbase-opensource-src/5.5.1+dfsg-16ubuntu7.6
    
    
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