CVE-2023-6936
wolfSSL Heap Buffer Over-Read
Description
In wolfSSL prior to 5.6.6, if callback functions are enabled (via the WOLFSSL_CALLBACKS flag), then a malicious TLS client or network attacker can trigger a buffer over-read on the heap of 5 bytes (WOLFSSL_CALLBACKS is only intended for debugging).
INFO
Published Date :
Feb. 20, 2024, 10:15 p.m.
Last Modified :
Feb. 22, 2024, 7:07 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
1.4
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2023-6936 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-2023-6936.
| URL | Resource |
|---|---|
| https://github.com/wolfSSL/wolfssl/pull/6949/ | |
| https://www.wolfssl.com/docs/security-vulnerabilities/ |
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).
wolfssl for windows 98 (coming soon)
CMake Dockerfile Shell C++ C Makefile Euphoria Batchfile BitBake FreeMarker
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-6936 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-6936 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 Received by [email protected]
Feb. 20, 2024
Action Type Old Value New Value Added Description In wolfSSL prior to 5.6.6, if callback functions are enabled (via the WOLFSSL_CALLBACKS flag), then a malicious TLS client or network attacker can trigger a buffer over-read on the heap of 5 bytes (WOLFSSL_CALLBACKS is only intended for debugging). Added Reference wolfSSL Inc. https://github.com/wolfSSL/wolfssl/pull/6949/ [No types assigned] Added Reference wolfSSL Inc. https://www.wolfssl.com/docs/security-vulnerabilities/ [No types assigned] Added CVSS V3.1 wolfSSL Inc. AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-6936 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-2023-6936
weaknesses.