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Ubuntu 14.04 ESM: USN-3976-4 Moderate: Samba Regression Issue

ubuntu
Calendar Grey May 27, 2019
Dist Ubuntu Esm H88
Resolution for Samba regression problem causing potential instability and security elevation risks in Ubuntu.
USN-3976-1 introduced a regression in Samba.

Summary

USN-3976-1 introduced a regression in Samba.

Software Description:

- samba: SMB/CIFS file, print, and login server for Unix

Details:

USN-3976-1 fixed a vulnerability in Samba. The update introduced a

regression causing Samba to occasionally crash. This update fixes the

problem.

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.

Topics%20covered

Topics Covered

security advisory privilege escalation samba Ubuntu crash

Update Instructions

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

Ubuntu 14.04 ESM:
  samba                           2:4.3.11+dfsg-0ubuntu0.14.04.20+esm2

In general, a standard system update will make all the necessary
changes.

References

  https://ubuntu.com/security/notices/USN-3976-4

  https://ubuntu.com/security/notices/USN-3976-1

  https://bugs.launchpad.net/ubuntu/+source/samba/+bug/1827924

May 27, 2019

Topics%20covered

Topics Covered

security advisory privilege escalation samba Ubuntu crash

Package Information

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