CVE-2020-12403
NSS CHACHA20-POLY1305 Multi-Part ChaCha20 Out-of-Bounds Read Vulnerability
Description
A flaw was found in the way CHACHA20-POLY1305 was implemented in NSS in versions before 3.55. When using multi-part Chacha20, it could cause out-of-bounds reads. This issue was fixed by explicitly disabling multi-part ChaCha20 (which was not functioning correctly) and strictly enforcing tag length. The highest threat from this vulnerability is to confidentiality and system availability.
INFO
Published Date :
May 27, 2021, 7:15 p.m.
Last Modified :
March 24, 2023, 4:15 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.2
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2020-12403 has a 3 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
Affected Products
The following products are affected by CVE-2020-12403
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
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-2020-12403.
| URL | Resource |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1868931 | Issue Tracking Patch Third Party Advisory |
| https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.55_release_notes | Release Notes Vendor Advisory |
| https://lists.debian.org/debian-lts-announce/2023/02/msg00021.html | |
| https://security.netapp.com/advisory/ntap-20230324-0006/ |
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).
None
Makefile C++ C# D C Python Shell Ada Rust JavaScript
Map Vulnerabilities into Different Layers of the Container Image
Python
Fuzzing cryptographic libraries. Magic bug printer go brrrr.
fuzzing cryptography security testing
Makefile C++ Shell C Python Go PowerShell Roff JavaScript Rust
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-12403 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-12403 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]
Mar. 24, 2023
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20230324-0006/ [No Types Assigned] -
CVE Modified by [email protected]
Feb. 20, 2023
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2023/02/msg00021.html [No Types Assigned] -
Initial Analysis by [email protected]
Jun. 09, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:N/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1868931 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1868931 Issue Tracking, Patch, Third Party Advisory Changed Reference Type https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.55_release_notes No Types Assigned https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.55_release_notes Release Notes, Vendor Advisory Added CWE NIST CWE-125 Added CPE Configuration OR *cpe:2.3:a:mozilla:nss:*:*:*:*:*:*:*:* versions up to (excluding) 3.55
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-12403 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-2020-12403
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.24 }} 0.02%
score
0.60910
percentile