CVE-2022-21670
Markdown-it Denial of Service (DoS) Vulnerability
Description
markdown-it is a Markdown parser. Prior to version 1.3.2, special patterns with length greater than 50 thousand characterss could slow down the parser significantly. Users should upgrade to version 12.3.2 to receive a patch. There are no known workarounds aside from upgrading.
INFO
Published Date :
Jan. 10, 2022, 9:15 p.m.
Last Modified :
Nov. 21, 2024, 6:45 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
1.4
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2022-21670 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-2022-21670.
| URL | Resource |
|---|---|
| https://github.com/markdown-it/markdown-it/commit/ffc49ab46b5b751cd2be0aabb146f2ef84986101 | Patch Third Party Advisory |
| https://github.com/markdown-it/markdown-it/security/advisories/GHSA-6vfc-qv3f-vr6c | Exploit Third Party Advisory |
| https://github.com/markdown-it/markdown-it/commit/ffc49ab46b5b751cd2be0aabb146f2ef84986101 | Patch Third Party Advisory |
| https://github.com/markdown-it/markdown-it/security/advisories/GHSA-6vfc-qv3f-vr6c | Exploit Third Party 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).
test 反向辣鸡数据投放 CVE-2022-23305 工具 利用 教程 Exploit POC
cve-2020-
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2022-21670 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-21670 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.
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CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://github.com/markdown-it/markdown-it/commit/ffc49ab46b5b751cd2be0aabb146f2ef84986101 Added Reference https://github.com/markdown-it/markdown-it/security/advisories/GHSA-6vfc-qv3f-vr6c -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Reanalysis by [email protected]
Jul. 24, 2023
Action Type Old Value New Value Removed CWE NIST CWE-400 Added CWE NIST CWE-1333 -
Initial Analysis by [email protected]
Jan. 18, 2022
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Changed Reference Type https://github.com/markdown-it/markdown-it/commit/ffc49ab46b5b751cd2be0aabb146f2ef84986101 No Types Assigned https://github.com/markdown-it/markdown-it/commit/ffc49ab46b5b751cd2be0aabb146f2ef84986101 Patch, Third Party Advisory Changed Reference Type https://github.com/markdown-it/markdown-it/security/advisories/GHSA-6vfc-qv3f-vr6c No Types Assigned https://github.com/markdown-it/markdown-it/security/advisories/GHSA-6vfc-qv3f-vr6c Exploit, Third Party Advisory Added CWE NIST CWE-400 Added CPE Configuration OR *cpe:2.3:a:markdown-it_project:markdown-it:*:*:*:*:*:*:*:* versions up to (including) 12.3.1
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-21670 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-2022-21670
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.58 }} -38.47%
score
0.66177
percentile