RedHat DHCP Client Security Update

Number: AV18-083
Date: 16 May 2018


The purpose of this advisory is to bring attention to a RedHat DHCP Client Security Update.


RedHat has released updates to address code execution vulnerability in the DHCP client. Exploitation of these vulnerabilities may allow an attacker to bypass certain security restrictions and perform unauthorized actions.

Affected Versions:

Suggested action

CCIRC recommends that owners/operators test and deploy the vendor released update or workaround to affected platforms accordingly.


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.

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

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