USN-4003-1: Qt vulnerabilities

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

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References

Source: USN-4003-1: Qt vulnerabilities

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