CVE-2019-20395
Apache Libyang Stack-based Buffer Overflow
Description
A stack consumption issue is present in libyang before v1.0-r1 due to the self-referential union type containing leafrefs. Applications that use libyang to parse untrusted input yang files may crash.
INFO
Published Date :
Jan. 22, 2020, 10:15 p.m.
Last Modified :
Sept. 19, 2023, 10:15 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
2.8
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-2019-20395.
| URL | Resource |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1793924 | Issue Tracking Third Party Advisory |
| https://github.com/CESNET/libyang/commit/4e610ccd87a2ba9413819777d508f71163fcc237 | Third Party Advisory |
| https://github.com/CESNET/libyang/compare/v0.16-r3...v1.0-r1 | Third Party Advisory |
| https://github.com/CESNET/libyang/issues/724 | Exploit Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2023/09/msg00019.html |
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-2019-20395 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2019-20395 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 -
CVE Modified by [email protected]
Sep. 19, 2023
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2023/09/msg00019.html [No Types Assigned] -
CWE Remap by [email protected]
Aug. 24, 2020
Action Type Old Value New Value Changed CWE CWE-400 CWE-674 -
Initial Analysis by [email protected]
Jan. 23, 2020
Action Type Old Value New Value Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:N/I:N/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1793924 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1793924 Issue Tracking, Third Party Advisory Changed Reference Type https://github.com/CESNET/libyang/commit/4e610ccd87a2ba9413819777d508f71163fcc237 No Types Assigned https://github.com/CESNET/libyang/commit/4e610ccd87a2ba9413819777d508f71163fcc237 Third Party Advisory Changed Reference Type https://github.com/CESNET/libyang/compare/v0.16-r3...v1.0-r1 No Types Assigned https://github.com/CESNET/libyang/compare/v0.16-r3...v1.0-r1 Third Party Advisory Changed Reference Type https://github.com/CESNET/libyang/issues/724 No Types Assigned https://github.com/CESNET/libyang/issues/724 Exploit, Third Party Advisory Added CWE NIST CWE-400 Added CPE Configuration OR *cpe:2.3:a:cesnet:libyang:0.11:r1:*:*:*:*:*:* *cpe:2.3:a:cesnet:libyang:0.11:r2:*:*:*:*:*:* *cpe:2.3:a:cesnet:libyang:0.12:r1:*:*:*:*:*:* *cpe:2.3:a:cesnet:libyang:0.12:r2:*:*:*:*:*:* *cpe:2.3:a:cesnet:libyang:0.13:r1:*:*:*:*:*:* *cpe:2.3:a:cesnet:libyang:0.13:r2:*:*:*:*:*:* *cpe:2.3:a:cesnet:libyang:0.14:r1:*:*:*:*:*:* *cpe:2.3:a:cesnet:libyang:0.15:r1:*:*:*:*:*:* *cpe:2.3:a:cesnet:libyang:0.16:r1:*:*:*:*:*:* *cpe:2.3:a:cesnet:libyang:0.16:r2:*:*:*:*:*:* *cpe:2.3:a:cesnet:libyang:0.16:r3:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2019-20395 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-2019-20395
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.39 }} 0.12%
score
0.70172
percentile