Samba (smbd) Vulnerability

Number: AV16-060
Date: 12 April 2016

Purpose

The purpose of this advisory is to bring attention to vulnerabilities in Samba (smbd).

Assessment

CCIRC is aware of vulnerabilities in Samba (smbd) which could allow a malicious actor to perform man-in-the-middle and denial-of-service attacks.  Security fixes for these vulnerabilities have been made available for Samba versions 4.2, 4.3 and 4.4.  Earlier versions of Samba have been discontinued and will not receive security fixes.

Affected versions: 4.4.0, 4.3.0-4.3.6, 4.2.0-4.2.9, 4.1.x, 4.0.x, 3.6.x

CVE References: CVE-2015-5370, CVE-2016-2110, CVE-2016-2111, CVE-2016-2112, CVE-2016-2113, CVE-2016-2114, CVE-2016-2115, CVE-2016-2118

Suggested Action

CCIRC recommends that system administrators identify their affected assets and potential interdependencies with their organization’s critical services, and follow their patch management process accordingly or consider applying the work-arounds.

References:

Note to Readers

In support of Public Safety's mission to build a safe and resilient Canada, CCIRC's mandate is to help ensure the security and resilience of the vital non-federal government cyber systems that underpin Canada's national security, public safety and economic prosperity. As Canada's computer security incident response team, CCIRC is Canada's national coordination centre for the prevention and mitigation of, preparedness for, response to, and recovery from cyber incidents on non-federal government systems. It does this by providing authoritative advice and support, and coordinating information sharing and incident response.

Please note, CCIRC PGP key has recently been updated.
http://www.publicsafety.gc.ca/cnt/ntnl-scrt/cbr-scrt/_fl/CCIRCPublicPGPKey.txt

For general information, please contact Public Safety Canada's Public Affairs division at:

Telephone: 613-944-4875 or 1-800-830-3118
Fax: 613-998-9589
E-mail: ps.communications-communications.sp@canada.ca

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