Packages
- bubblewrap - Low-level unprivileged sandboxing tool used by Flatpak and similar projects
Details
It was discovered that Bubblewrap incorrectly handled certain temporary
directories. A local attacker could possibly use this issue to cause a
denial of service or execute arbitrary code. This issue only affected
Ubuntu 18.04 LTS. (CVE-2019-12439)
It was discovered that Bubblewrap incorrectly handled certain symlinks
during sandbox setup. A local attacker could possibly use this issue to
create files outside of the sandbox. (CVE-2026-87766)
It was discovered that Bubblewrap incorrectly handled certain temporary
directories. A local attacker could possibly use this issue to cause a
denial of service or execute arbitrary code. This issue only affected
Ubuntu 18.04 LTS. (CVE-2019-12439)
It was discovered that Bubblewrap incorrectly handled certain symlinks
during sandbox setup. A local attacker could possibly use this issue to
create files outside of the sandbox. (CVE-2026-87766)
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 | ||
|---|---|---|---|
| 26.04 LTS resolute | bubblewrap – 0.11.1-1ubuntu0.2 | ||
| 24.04 LTS noble | bubblewrap – 0.9.0-1ubuntu0.2 | ||
| 22.04 LTS jammy | bubblewrap – 0.6.1-1ubuntu0.2 | ||
| 20.04 LTS focal | bubblewrap – 0.4.0-1ubuntu4.1+esm2 | ||
| 18.04 LTS bionic | bubblewrap – 0.2.1-1ubuntu0.1+esm2 | ||
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