CVE-2021-23386
Remote Memory Exposure
Description
This affects the package dns-packet before 5.2.2. It creates buffers with allocUnsafe and does not always fill them before forming network packets. This can expose internal application memory over unencrypted network when querying crafted invalid domain names.
INFO
Published Date :
May 20, 2021, 5:15 p.m.
Last Modified :
Nov. 21, 2024, 5:51 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | MEDIUM | [email protected] |
Public PoC/Exploit Available at Github
CVE-2021-23386 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
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-2021-23386.
| URL | Resource |
|---|---|
| https://github.com/mafintosh/dns-packet/commit/25f15dd0fedc53688b25fd053ebbdffe3d5c1c56 | Patch Third Party Advisory |
| https://hackerone.com/bugs?subject=user&%3Breport_id=968858 | Permissions Required Third Party Advisory |
| https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1295719 | Patch Third Party Advisory |
| https://snyk.io/vuln/SNYK-JS-DNSPACKET-1293563 | Patch Third Party Advisory |
| https://github.com/mafintosh/dns-packet/commit/25f15dd0fedc53688b25fd053ebbdffe3d5c1c56 | Patch Third Party Advisory |
| https://hackerone.com/bugs?subject=user&%3Breport_id=968858 | Permissions Required Third Party Advisory |
| https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1295719 | Patch Third Party Advisory |
| https://snyk.io/vuln/SNYK-JS-DNSPACKET-1293563 | Patch Third Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-23386 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-2021-23386
weaknesses.
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).
cs-316-project-primespiders created by GitHub Classroom
HTML CSS JavaScript Pug
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-23386 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-23386 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 af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://github.com/mafintosh/dns-packet/commit/25f15dd0fedc53688b25fd053ebbdffe3d5c1c56 Added Reference https://hackerone.com/bugs?subject=user&%3Breport_id=968858 Added Reference https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1295719 Added Reference https://snyk.io/vuln/SNYK-JS-DNSPACKET-1293563 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CWE Remap by [email protected]
Jul. 12, 2022
Action Type Old Value New Value Changed CWE CWE-200 CWE-909 -
Reanalysis by [email protected]
Jun. 01, 2021
Action Type Old Value New Value Changed Reference Type https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1295719 Third Party Advisory https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1295719 Patch, Third Party Advisory Changed Reference Type https://snyk.io/vuln/SNYK-JS-DNSPACKET-1293563 Third Party Advisory https://snyk.io/vuln/SNYK-JS-DNSPACKET-1293563 Patch, Third Party Advisory Changed CPE Configuration OR *cpe:2.3:a:dns-packet_project:dns-packet:*:*:*:*:*:node.js:*:* versions up to (excluding) 5.2.2 OR *cpe:2.3:a:dns-packet_project:dns-packet:*:*:*:*:*:node.js:*:* versions up to (excluding) 1.3.4 *cpe:2.3:a:dns-packet_project:dns-packet:*:*:*:*:*:node.js:*:* versions from (including) 2.0.0 up to (excluding) 5.2.2 -
Initial Analysis by [email protected]
May. 26, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:P/I:N/A:N) Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Changed Reference Type https://github.com/mafintosh/dns-packet/commit/25f15dd0fedc53688b25fd053ebbdffe3d5c1c56 No Types Assigned https://github.com/mafintosh/dns-packet/commit/25f15dd0fedc53688b25fd053ebbdffe3d5c1c56 Patch, Third Party Advisory Changed Reference Type https://hackerone.com/bugs?subject=user&%3Breport_id=968858 No Types Assigned https://hackerone.com/bugs?subject=user&%3Breport_id=968858 Permissions Required, Third Party Advisory Changed Reference Type https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1295719 No Types Assigned https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1295719 Third Party Advisory Changed Reference Type https://snyk.io/vuln/SNYK-JS-DNSPACKET-1293563 No Types Assigned https://snyk.io/vuln/SNYK-JS-DNSPACKET-1293563 Third Party Advisory Added CWE NIST CWE-200 Added CPE Configuration OR *cpe:2.3:a:dns-packet_project:dns-packet:*:*:*:*:*:node.js:*:* versions up to (excluding) 5.2.2
Vulnerability Scoring Details
Base CVSS Score: 7.7
Base CVSS Score: 4
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.58 }} -0.53%
score
0.68120
percentile