6.8 - USN-2626-1

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 15.04 - Ubuntu 14.10 - Ubuntu 14.04 LTS - Ubuntu 12.04 LTS

Summary:

Qt could be made to crash or run programs as your login if it opened a specially crafted file.

Software Description: - qt4-x11: Qt 4 libraries - qtbase-opensource-src: Qt 5 libraries

Details:

Wolfgang Schenk discovered that Qt incorrectly handled certain malformed GIF images. If a user or automated system were tricked into opening a specially crafted GIF image, a remote attacker could use this issue to cause Qt to crash, resulting in a denial of service. This issue only applied to Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2014-0190)

Fabian Vogt discovered that Qt incorrectly handled certain malformed BMP images. If a user or automated system were tricked into opening a specially crafted BMP image, a remote attacker could use this issue to cause Qt to crash, resulting in a denial of service. (CVE-2015-0295)

Richard Moore and Fabian Vogt discovered that Qt incorrectly handled certain malformed BMP images. If a user or automated system were tricked into opening a specially crafted BMP image, a remote attacker could use this issue to cause Qt to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2015-1858)

Richard Moore and Fabian Vogt discovered that Qt incorrectly handled certain malformed ICO images. If a user or automated system were tricked into opening a specially crafted ICO image, a remote attacker could use this issue to cause Qt to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2015-1859)

Richard Moore and Fabian Vogt discovered that Qt incorrectly handled certain malformed GIF images. If a user or automated system were tricked into opening a specially crafted GIF image, a remote attacker could use this issue to cause Qt to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2015-1860)

Update instructions:

The problem can be corrected by updating your system to the following package versions:

Ubuntu 15.04:
libqt5gui5 5.4.1+dfsg-2ubuntu4.1
libqtgui4 4:4.8.6+git64-g5dc8b2b+dfsg-3~ubuntu6.1

Ubuntu 14.10:
libqt5gui5 5.3.0+dfsg-2ubuntu9.1
libqtgui4 4:4.8.6+git49-gbc62005+dfsg-1ubuntu1.1

Ubuntu 14.04 LTS:
libqt5gui5 5.2.1+dfsg-1ubuntu14.3
libqtgui4 4:4.8.5+git192-g085f851+dfsg-2ubuntu4.1

Ubuntu 12.04 LTS:
libqtgui4 4:4.8.1-0ubuntu4.9

After a standard system update you need to restart your session to make all the necessary changes.

References:
http://www.ubuntu.com/usn/usn-2626-1
CVE-2014-0190, CVE-2015-0295, CVE-2015-1858, CVE-2015-1859,
CVE-2015-1860

Package Information:

https://launchpad.net/ubuntu/+source/qt4-x11/4:4.8.6+git64-g5dc8b2b+dfsg-3~ubuntu6.1
https://launchpad.net/ubuntu/+source/qtbase-opensource-src/5.4.1+dfsg-2ubuntu4.1

https://launchpad.net/ubuntu/+source/qt4-x11/4:4.8.6+git49-gbc62005+dfsg-1ubuntu1.1
https://launchpad.net/ubuntu/+source/qtbase-opensource-src/5.3.0+dfsg-2ubuntu9.1

https://launchpad.net/ubuntu/+source/qt4-x11/4:4.8.5+git192-g085f851+dfsg-2ubuntu4.1
https://launchpad.net/ubuntu/+source/qtbase-opensource-src/5.2.1+dfsg-1ubuntu14.3
https://launchpad.net/ubuntu/+source/qt4-x11/4:4.8.1-0ubuntu4.9