1. Ubuntu Security Notices
  2. USN-5081-1

USN-5081-1: Qt vulnerabilities

Publication date

16 September 2021

Overview

Several security issues were fixed in Qt.

Releases

Packages

Details

It was discovered that Qt incorrectly handled certain XBM image files. 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. (CVE-2020-17507)

It was discovered that Qt incorrectly handled certain graphics operations.
If a user or automated system were tricked into performing certain graphics
operations, a remote attacker could cause Qt to crash, resulting in a
denial of service. (CVE-2021-38593)

It was discovered that Qt incorrectly handled certain XBM image files. 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. (CVE-2020-17507)

It was discovered that Qt incorrectly handled certain graphics operations.
If a user or automated system were tricked into performing certain graphics
operations, a remote attacker could cause Qt to crash, resulting in a
denial of service. (CVE-2021-38593)

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
18.04 bionic libqt5core5a –  5.9.5+dfsg-0ubuntu2.6
libqt5gui5 –  5.9.5+dfsg-0ubuntu2.6

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References

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