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Unscored USN-3976-3 0 CVEs

samba regression

Published May 27, 2019 · Updated Apr 22, 2026

Summary

USN-3976-1 fixed a vulnerability in Samba. The update introduced a
regression causing Samba to occasionally crash. This update fixes the
problem.

We apologize for the inconvenience.

Original advisory details:

Isaac Boukris and Andrew Bartlett discovered that Samba incorrectly checked
S4U2Self packets. In certain environments, a remote attacker could possibly
use this issue to escalate privileges.

Fixed packages 2

ReleasePackageFixed in
Ubuntu · 16.04 LTS 16.04:LTS samba 2:4.3.11+dfsg-0ubuntu0.16.04.21
Ubuntu · 18.04 LTS 18.04:LTS samba 2:4.7.6+dfsg~ubuntu-0ubuntu2.11

References

  • report
    https://launchpad.net/bugs/1827924