Executive Summary

Title Samba vulnerabilities
Name USN-4167-1 First vendor Publication 2019-10-29
Vendor Ubuntu Last vendor Modification 2019-10-29
Severity (Vendor) N/A Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
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Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores


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

- Ubuntu 19.10 - Ubuntu 19.04 - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS


Several security issues were fixed in Samba.

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


Michael Hanselmann discovered that the Samba client code incorrectly handled path separators. If a user were tricked into connecting to a malicious server, a remote attacker could use this issue to cause the client to access local pathnames instead of network pathnames. (CVE-2019-10218)

Simon Fonteneau and Björn Baumbach discovered that Samba incorrectly handled the check password script. This issue could possibly bypass custom password complexity checks, contrary to expectations. This issue only affected Ubuntu 18.04 LTS, Ubuntu 19.04, and Ubuntu 19.10. (CVE-2019-14833)

Adam Xu discovered that Samba incorrectly handled the dirsync LDAP control. A remote attacker with "get changes" permissions could possibly use this issue to cause Samba to crash, resulting in a denial of service. (CVE-2019-14847)

Update instructions:

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

Ubuntu 19.10:
libsmbclient 2:4.10.7+dfsg-0ubuntu2.2
samba 2:4.10.7+dfsg-0ubuntu2.2

Ubuntu 19.04:
libsmbclient 2:4.10.0+dfsg-0ubuntu2.6
samba 2:4.10.0+dfsg-0ubuntu2.6

Ubuntu 18.04 LTS:
libsmbclient 2:4.7.6+dfsg~ubuntu-0ubuntu2.13
samba 2:4.7.6+dfsg~ubuntu-0ubuntu2.13

Ubuntu 16.04 LTS:
libsmbclient 2:4.3.11+dfsg-0ubuntu0.16.04.23
samba 2:4.3.11+dfsg-0ubuntu0.16.04.23

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

CVE-2019-10218, CVE-2019-14833, CVE-2019-14847

Package Information:

Original Source

Url : http://www.ubuntu.com/usn/USN-4167-1

Alert History

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Date Informations
2019-10-29 17:19:12
  • First insertion