CVE-2018-7166
"Node.js Memory Allocation Vulnerability"
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.
INFO
Published Date :
Aug. 21, 2018, 12:29 p.m.
Last Modified :
Sept. 22, 2020, 1:59 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2018-7166.
| URL | Resource |
|---|---|
| https://access.redhat.com/errata/RHSA-2018:2553 | Third Party Advisory |
| https://nodejs.org/en/blog/vulnerability/august-2018-security-releases/ | Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2018-7166 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2018-7166 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Sep. 22, 2020
Action Type Old Value New Value Removed CVSS V3 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Removed CWE NIST CWE-119 Added CWE NIST CWE-908 -
CVE Modified by [email protected]
Oct. 09, 2019
Action Type Old Value New Value Added CWE Node.js CWE-226 -
Initial Analysis by [email protected]
Nov. 07, 2018
Action Type Old Value New Value Added CVSS V2 (AV:N/AC:L/Au:N/C:P/I:N/A:N) Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Changed Reference Type https://nodejs.org/en/blog/vulnerability/august-2018-security-releases/ No Types Assigned https://nodejs.org/en/blog/vulnerability/august-2018-security-releases/ Vendor Advisory Changed Reference Type https://access.redhat.com/errata/RHSA-2018:2553 No Types Assigned https://access.redhat.com/errata/RHSA-2018:2553 Third Party Advisory Added CWE CWE-119 Added CPE Configuration OR *cpe:2.3:a:nodejs:node.js:*:*:*:*:*:*:*:* versions from (including) 10.0.0 up to (excluding) 10.9.0 -
CVE Modified by [email protected]
Aug. 23, 2018
Action Type Old Value New Value Added Reference https://access.redhat.com/errata/RHSA-2018:2553 [No Types Assigned] -
CVE Modified by [email protected]
Aug. 21, 2018
Action Type Old Value New Value Changed Description 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. 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.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2018-7166 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2018-7166
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.18 }} 0.00%
score
0.53128
percentile