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Ubuntu: 4275-1 Critical: Qt Denial Of Service And Code Execution

ubuntu
Calendar Grey February 10, 2020
Dist Ubuntu Esm H88
Multiple Qt security issues resolved for Ubuntu releases 16.04, 18.04, and 19.10 with critical updates.
Several security issues were fixed in Qt.

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 PPM images. If a user

or automated system were tricked into opening a specially crafted PPM file,

a remote attacker could cause Qt to crash, resulting in a denial of

service. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS.

(CVE-2018-19872)

It was discovered that Qt incorrectly handled certain text files. If a user

or automated system were tricked into opening a specially crafted text

file, a remote attacker could cause Qt to crash, resulting in a denial of

service. This issue only affected Ubuntu 19.10. (CVE-2019-18281)

It was discovered that Qt incorrectly searched for plugins in the current

working directory. An attacker could possibly use this issue to execute

arbitrary code. (CVE-2020-0569)

It was discovered that Qt incorrectly searched for libraries relative to

the cu...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service remote code execution Ubuntu qtbase-opensource-src

Update Instructions

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

Ubuntu 19.10:
  libqt5core5a                    5.12.4+dfsg-4ubuntu1.1
  libqt5gui5                      5.12.4+dfsg-4ubuntu1.1

Ubuntu 18.04 LTS:
  libqt5core5a                    5.9.5+dfsg-0ubuntu2.5
  libqt5gui5                      5.9.5+dfsg-0ubuntu2.5

Ubuntu 16.04 LTS:
  libqt5core5a                    5.5.1+dfsg-16ubuntu7.7
  libqt5gui5                      5.5.1+dfsg-16ubuntu7.7

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

References

CVE-2018-19872, CVE-2019-18281, CVE-2020-0569, CVE-2020-0570

Severity
critical
Lowest
Low
Medium
High
Critical

February 10, 2020

Topics%20covered

Topics Covered

security advisory denial of service remote code execution Ubuntu qtbase-opensource-src

Package Information

https://launchpad.net/ubuntu/+source/qtbase-opensource-src/5.12.4+dfsg-4ubuntu1.1
https://launchpad.net/ubuntu/+source/qtbase-opensource-src/5.9.5+dfsg-0ubuntu2.5
https://launchpad.net/ubuntu/+source/qtbase-opensource-src/5.5.1+dfsg-16ubuntu7.7

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