Microsoft Security Update – Out-of-Band

Number: AV18-054
Date: 30 March 2018

Purpose

The purpose of this advisory is to bring attention to a recently released Microsoft Security Update to which addresses failure to protect kernel memory when the Microsoft patch for the vulnerability known as Meltdown is installed.

Assessment

This advisory addresses the vulnerability by correcting how the Windows kernel handles objects in memory in various Microsoft products.

Affected Products:

CVE References: CVE-2018-1038

Suggested action

CCIRC recommends that system administrators test and deploy the vendor-released updates to affected applications accordingly.

References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-1038
https://www.kb.cert.org/vuls/id/277400

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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