Packages
- snapd - Daemon and tooling that enable snap packages
Details
James Henstridge discovered that snapd's default apparmor template did
not restrict access to systemd-userdbd varlink interface. A local
attacker could possibly use this issue to obtain sensitive information.
(CVE-2024-5300)
Qualys discovered that snap-confine can be tricked to create
attacker-controlled files at certain privileged locations. A local
attacker could possibly use this issue to bypass intended restrictions
and escalate privileges to root. This issue only affected
Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 26.04 LTS.
(CVE-2026-8933)
Zygmunt Krynicki discovered that snapd's default seccomp template
did not restrict the creation of executables with the set-user-ID
attribute. A local attacker could possibly use this issue to create
and execute setuid binaries. (CVE-2026-15226)
James Henstridge discovered that snapd's default apparmor template did
not restrict access to systemd-userdbd varlink interface. A local
attacker could possibly use this issue to obtain sensitive information.
(CVE-2024-5300)
Qualys discovered that snap-confine can be tricked to create
attacker-controlled files at certain privileged locations. A local
attacker could possibly use this issue to bypass intended restrictions
and escalate privileges to root. This issue only affected
Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 26.04 LTS.
(CVE-2026-8933)
Zygmunt Krynicki discovered that snapd's default seccomp template
did not restrict the creation of executables with the set-user-ID
attribute. A local attacker could possibly use this issue to create
and execute setuid binaries. (CVE-2026-15226)
Update instructions
After a standard system update you need to reboot your computer 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 | ||
|---|---|---|---|
| 26.04 LTS resolute | snapd – 2.76+ubuntu26.04.3 | ||
| 24.04 LTS noble | snapd – 2.76+ubuntu24.04.1 | ||
| 22.04 LTS jammy | snapd – 2.76+ubuntu22.04.1 | ||
| 20.04 LTS focal | snapd – 2.67.1+20.04ubuntu1~esm3 | ||
| 18.04 LTS bionic | snapd – 2.61.4ubuntu0.18.04.1+esm4 | ||
| 16.04 LTS xenial | snapd – 2.61.4ubuntu0.16.04.1+esm4 | ||
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.