Qt could be made to crash or run programs as your login if it opened a specially crafted file.
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)
3 June 2015
A security issue affects these releases of Ubuntu and its derivatives:
Qt could be made to crash or run programs as your login if it opened a specially crafted file.
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)
The problem can be corrected by updating your system to the following package versions:
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
After a standard system update you need to restart your session to make all the necessary changes.