1. Ubuntu Security Notices
  2. USN-7046-1

USN-7046-1: Flatpak and Bubblewrap vulnerability

Publication date

30 September 2024

Overview

Flatpak could be made to read and write files in locations it would not normally have access to.

Releases

Packages

  • bubblewrap - setuid wrapper for unprivileged chroot and namespace manipulation
  • flatpak - Application deployment framework for desktop apps

Details

It was discovered that Flatpak incorrectly handled certain persisted
directories. An attacker could possibly use this issue to read
and write files in locations it would not normally have access to.
A patch was also needed to Bubblewrap in order to avoid race
conditions caused by this fix.

It was discovered that Flatpak incorrectly handled certain persisted
directories. An attacker could possibly use this issue to read
and write files in locations it would not normally have access to.
A patch was also needed to Bubblewrap in order to avoid race
conditions caused by this fix.

Update instructions

In general, a standard system update will 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
24.04 noble bubblewrap –  0.9.0-1ubuntu0.1
flatpak –  1.14.6-1ubuntu0.1
libflatpak0 –  1.14.6-1ubuntu0.1
22.04 jammy bubblewrap –  0.6.1-1ubuntu0.1
flatpak –  1.12.7-1ubuntu0.1
libflatpak0 –  1.12.7-1ubuntu0.1
20.04 focal bubblewrap –  0.4.0-1ubuntu4.1
flatpak –  1.6.5-0ubuntu0.5
libflatpak0 –  1.6.5-0ubuntu0.5

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Get Ubuntu Pro

References

Have additional questions?

Talk to a member of the team ›