CVE-2018-7166 (GCVE-0-2018-7166)

Vulnerability from cvelistv5 – Published: 2018-08-21 13:00 – Updated: 2026-10-08 21:14
VLAI
Summary
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.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 21:12 UTC
CWE
  • CWE-226 - Sensitive Information Uncleared Before Release
Assigner
nodejs CNA under the mitre root
CNA scorecard – unranked: 0 records in the last 180 days, 10 needed details
References
URL Tags
https://access.redhat.com/errata/RHSA-2018:2553 vendor-advisoryx_refsource_REDHAT
https://nodejs.org/en/blog/vulnerability/august-2… x_refsource_CONFIRM
Impacted products
Vendor Product Version CPE status
The Node.js Project Node.js Affected: All versions of Node.js 10 prior to 10.9.0
guessed Create a notification for this product.
Date Public
2018-08-12 00:00
Show details on NVD website
To clipboard 

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