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Ubuntu Security Notice USN-4003-1

Ubuntu Security Notice USN-4003-1
Posted Jun 3, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4003-1 - 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. 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. Various other issues were also addressed.

tags | advisory, remote, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2018-15518, CVE-2018-19870, CVE-2018-19873
MD5 | b7fb6b001cd02df229aac7c82b2f674f

Ubuntu Security Notice USN-4003-1

Change Mirror Download
==========================================================================
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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