In all versions of Node.js 10 prior to 10.9.0, an argument processing flaw can cause `Buffer.alloc()` to return uninitialized memory. This method is intended to be safe and only return initialized, or cleared, memory. The third argument specifying `encoding` can be passed as a number, this is misinterpreted by `Buffer's` internal "fill" method as the `start` to a fill operation. This flaw may be abused where `Buffer.alloc()` arguments are derived from user input to return uncleared memory blocks that may contain sensitive information.
History

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cve-icon MITRE

Status: PUBLISHED

Assigner: nodejs

Published: 2018-08-21T13:00:00Z

Updated: 2024-09-17T00:26:00.258Z

Reserved: 2018-02-15T00:00:00

Link: CVE-2018-7166

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2018-08-21T12:29:00.320

Modified: 2024-11-21T04:11:42.510

Link: CVE-2018-7166

cve-icon Redhat

Severity : Moderate

Publid Date: 2018-08-11T00:00:00Z

Links: CVE-2018-7166 - Bugzilla