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             AUSCERT External Security Bulletin Redistribution

                     USN-4217-2: Samba vulnerabilities
                             12 December 2019


        AusCERT Security Bulletin Summary

Product:           Samba
Publisher:         Ubuntu
Operating System:  Ubuntu
Impact/Access:     Denial of Service   -- Remote/Unauthenticated
                   Unauthorised Access -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-14870 CVE-2019-14861 

Reference:         ESB-2019.4604

Original Bulletin: 

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USN-4217-2: Samba vulnerabilities
11 December 2019

samba vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:

  o Ubuntu 14.04 ESM


Several security issues were fixed in Samba.

Software Description

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


USN-4217-1 fixed several vulnerabilities in Samba. This update provides the
corresponding update for Ubuntu 14.04 ESM.

Original advisory details:

Andreas Oster discovered that the Samba DNS management server incorrectly
handled certain records. An authenticated attacker could possibly use this
issue to crash Samba, resulting in a denial of service. (CVE-2019-14861)

Isaac Boukris discovered that Samba did not enforce the Kerberos
DelegationNotAllowed feature restriction, contrary to expectations.

Update instructions

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

Ubuntu 14.04 ESM
    libsmbclient - 2:4.3.11+dfsg-0ubuntu0.14.04.20+esm4
    samba - 2:4.3.11+dfsg-0ubuntu0.14.04.20+esm4

To update your system, please follow these instructions: https://
wiki.ubuntu.com/Security/Upgrades .

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


  o USN-4217-1
  o CVE-2019-14861
  o CVE-2019-14870

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