CVE-2018-7166 Information

Description

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Reference

https://access.redhat.com/errata/RHSA-2018:2553 https://nodejs.org/en/blog/vulnerability/august-2018-security-releases/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

NONE

Base Severity

7.5