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AUSCERT External Security Bulletin Redistribution
ESB-2019.1990
USN-4003-1: Qt vulnerabilities
4 June 2019
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AusCERT Security Bulletin Summary
---------------------------------
Product: Qt
Publisher: Ubuntu
Operating System: Ubuntu
Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction
Denial of Service -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2018-19873 CVE-2018-19870 CVE-2018-15518
Reference: ESB-2019.1700
ESB-2019.1247
ESB-2019.0235
ESB-2019.0052
Original Bulletin:
https://usn.ubuntu.com/4003-1/
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USN-4003-1: Qt vulnerabilities
3 June 2019
qtbase-opensource-src vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
o Ubuntu 18.10
o Ubuntu 18.04 LTS
o Ubuntu 16.04 LTS
Summary
Several security issues were fixed in Qt.
Software Description
o 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
o CVE-2018-15518
o CVE-2018-19870
o CVE-2018-19873
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