CVE-2018-7166

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 v3 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:P/I:N/A:N

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
https://access.redhat.com/errata/RHSA-2018:2553	Third Party Advisory
https://nodejs.org/en/blog/vulnerability/august-2018-security-releases/	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:nodejs:node.js:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2018-08-21 12:29

Updated : 2023-12-10 12:44

NVD link : CVE-2018-7166

Mitre link : CVE-2018-7166

CVE.ORG link : CVE-2018-7166

JSON object : View

Products Affected

nodejs

node.js

CWE

CWE-908

Use of Uninitialized Resource

CWE-226

Sensitive Information in Resource Not Removed Before Reuse

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