CVE-2021-32494
Radare2 Mach-O Parser Division by Zero Dos Vulnerability
Description
Radare2 has a division by zero vulnerability in Mach-O parser's rebase_buffer function. This allow attackers to create malicious inputs that can cause denial of service.
INFO
Published Date :
July 7, 2023, 7:15 p.m.
Last Modified :
July 13, 2023, 6:37 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
6.0
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-2021-32494.
| URL | Resource |
|---|---|
| https://github.com/radareorg/radare2/commit/a07dedb804a82bc01c07072861942dd80c6b6d62 | Patch Vendor Advisory |
| https://github.com/radareorg/radare2/issues/18667 | Exploit Issue Tracking Patch Vendor 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-2021-32494 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-32494 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 -
Initial Analysis by [email protected]
Jul. 13, 2023
Action Type Old Value New Value 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/radareorg/radare2/commit/a07dedb804a82bc01c07072861942dd80c6b6d62 No Types Assigned https://github.com/radareorg/radare2/commit/a07dedb804a82bc01c07072861942dd80c6b6d62 Patch, Vendor Advisory Changed Reference Type https://github.com/radareorg/radare2/issues/18667 No Types Assigned https://github.com/radareorg/radare2/issues/18667 Exploit, Issue Tracking, Patch, Vendor Advisory Added CWE NIST CWE-369 Added CPE Configuration OR *cpe:2.3:a:radare:radare2:5.3.0:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-32494 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-2021-32494
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.09 }} 0.01%
score
0.39870
percentile