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Unscored USN-4649-2 0 CVEs

xdg-utils regression

Published Jan 12, 2021 · Updated Feb 10, 2026

Summary

USN-4649-1 fixed vulnerabilities in xdg-utils. That update caused a regression
by removing the --attach functionality in thunderbird and others applications.
This update fix the problem by reverting these changes.

Original advisory details:

Jens Mueller discovered that xdg-utils incorrectly handled certain URI.
An attacker could possibly use this issue to expose sensitive information.

Fixed packages 3

ReleasePackageFixed in
Ubuntu · 16.04 LTS 16.04:LTS xdg-utils 1.1.1-1ubuntu1.16.04.5
Ubuntu · 18.04 LTS 18.04:LTS xdg-utils 1.1.2-1ubuntu2.5
Ubuntu · 20.04 LTS 20.04:LTS xdg-utils 1.1.3-2ubuntu1.20.04.2

References

  • report
    https://launchpad.net/bugs/1909941