CVE-2019-25036
Unbound Assertion Failure and Denial of Service CNAME Synth Vulnerability
Description
Unbound before 1.9.5 allows an assertion failure and denial of service in synth_cname. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited
INFO
Published Date :
April 27, 2021, 6:15 a.m.
Last Modified :
Nov. 21, 2024, 4:39 a.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-2019-25036.
| URL | Resource |
|---|---|
| https://lists.debian.org/debian-lts-announce/2021/05/msg00007.html | Mailing List Third Party Advisory |
| https://ostif.org/our-audit-of-unbound-dns-by-x41-d-sec-full-results/ | Patch Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20210507-0007/ | Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2021/05/msg00007.html | Mailing List Third Party Advisory |
| https://ostif.org/our-audit-of-unbound-dns-by-x41-d-sec-full-results/ | Patch Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20210507-0007/ | 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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2019-25036 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2019-25036 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://lists.debian.org/debian-lts-announce/2021/05/msg00007.html Added Reference https://ostif.org/our-audit-of-unbound-dns-by-x41-d-sec-full-results/ Added Reference https://security.netapp.com/advisory/ntap-20210507-0007/ -
CVE Modified by [email protected]
Aug. 05, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
May. 17, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Apr. 11, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Mar. 21, 2024
Action Type Old Value New Value Added Tag MITRE disputed -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Changed Description ** DISPUTED ** Unbound before 1.9.5 allows an assertion failure and denial of service in synth_cname. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited. Unbound before 1.9.5 allows an assertion failure and denial of service in synth_cname. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited -
Modified Analysis by [email protected]
Dec. 03, 2021
Action Type Old Value New Value -
CVE Modified by [email protected]
Jun. 11, 2021
Action Type Old Value New Value Changed Description Unbound before 1.9.5 allows an assertion failure and denial of service in synth_cname. ** DISPUTED ** Unbound before 1.9.5 allows an assertion failure and denial of service in synth_cname. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited. -
Modified Analysis by [email protected]
Jun. 01, 2021
Action Type Old Value New Value Changed Reference Type https://lists.debian.org/debian-lts-announce/2021/05/msg00007.html No Types Assigned https://lists.debian.org/debian-lts-announce/2021/05/msg00007.html Mailing List, Third Party Advisory Changed Reference Type https://security.netapp.com/advisory/ntap-20210507-0007/ No Types Assigned https://security.netapp.com/advisory/ntap-20210507-0007/ Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
May. 07, 2021
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20210507-0007/ [No Types Assigned] -
CVE Modified by [email protected]
May. 07, 2021
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2021/05/msg00007.html [No Types Assigned] -
Initial Analysis by [email protected]
Apr. 30, 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://ostif.org/our-audit-of-unbound-dns-by-x41-d-sec-full-results/ No Types Assigned https://ostif.org/our-audit-of-unbound-dns-by-x41-d-sec-full-results/ Patch, Third Party Advisory Added CWE NIST CWE-617 Added CPE Configuration OR *cpe:2.3:a:nlnetlabs:unbound:*:*:*:*:*:*:*:* versions up to (excluding) 1.9.5
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2019-25036 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-2019-25036
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.25 }} -0.25%
score
0.64003
percentile