CVE-2021-28903
QualiWise libyang Stack Overflow Denial of Service
Description
A stack overflow in libyang <= v1.0.225 can cause a denial of service through function lyxml_parse_mem(). lyxml_parse_elem() function will be called recursively, which will consume stack space and lead to crash.
INFO
Published Date :
May 20, 2021, 7:15 p.m.
Last Modified :
April 5, 2022, 6:08 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2021-28903 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-2021-28903.
| URL | Resource |
|---|---|
| https://github.com/CESNET/libyang/issues/1453 | Exploit Issue Tracking Third Party Advisory |
| https://security.gentoo.org/glsa/202107-54 | 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).
Automatic monitor github cve using Github Actions
Python
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-28903 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-28903 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]
Apr. 05, 2022
Action Type Old Value New Value Changed Reference Type https://security.gentoo.org/glsa/202107-54 No Types Assigned https://security.gentoo.org/glsa/202107-54 Third Party Advisory -
CVE Modified by [email protected]
Jul. 24, 2021
Action Type Old Value New Value Added Reference https://security.gentoo.org/glsa/202107-54 [No Types Assigned] -
Initial Analysis by [email protected]
May. 24, 2021
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:H Changed Reference Type https://github.com/CESNET/libyang/issues/1453 No Types Assigned https://github.com/CESNET/libyang/issues/1453 Exploit, Issue Tracking, Third Party Advisory Added CWE NIST CWE-674 Added CPE Configuration OR *cpe:2.3:a:cesnet:libyang:*:*:*:*:*:*:*:* versions up to (including) 1.0.225
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-28903 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-2021-28903
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.12 }} 0.02%
score
0.45503
percentile