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Ubuntu 24.04 LTS snapd Important Privilege Escalation Fix USN-8102-2

ubuntu
Calendar Grey March 18, 2026
Dist Ubuntu Esm H88
Ubuntu 24.04 LTS snapd regression fixed. Update required for critical security issue after USN-8102-1.
USN-8102-1 introduced a regression in snapd

Summary

USN-8102-1 introduced a regression in snapd

Software Description:

- snapd: Daemon and tooling that enable snap packages

Details:

USN-8102-1 fixed a vulnerability in snapd. The update caused a regresision for

Ubuntu 24.04 LTS while installing the package. This update fixes the problem.

We apologize for the inconvenience.

Original advisory details:

Qualys discovered that snapd incorrectly handled certain operations in the

snap's private /tmp directory. If systemd-tmpfiles is enabled to automatically

clean up this directory, a local attacker could possibly use this issue to

re-create the deleted directory, resulting in privilege escalation.

Topics%20covered

Topics Covered

security advisory privilege escalation Ubuntu important regression snapd

Update Instructions

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

Ubuntu 24.04 LTS
  snapd                           2.73+ubuntu24.04.2

After a standard system update you need to reboot your computer to make
all the necessary changes.

References

https://ubuntu.com/security/notices/USN-8102-2

https://ubuntu.com/security/notices/USN-8102-1

CVE-2026-3888, https://launchpad.net/bugs/2144728

Severity
important
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-8102-2

Topics%20covered

Topics Covered

security advisory privilege escalation Ubuntu important regression snapd

Package Information

https://launchpad.net/ubuntu/+source/snapd/2.73+ubuntu24.04.2

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