CVE-2020-24863
MidnightBSD Freebsd KernelHeapCorruption
Description
A memory corruption vulnerability was found in the kernel function kern_getfsstat in MidnightBSD before 1.2.7 and 1.3 through 2020-08-19, and FreeBSD through 11.4, that allows an attacker to trigger an invalid free and crash the system via a crafted size value in conjunction with an invalid mode.
INFO
Published Date :
Sept. 3, 2020, 3:15 p.m.
Last Modified :
Sept. 11, 2020, 2:03 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
Public PoC/Exploit Available at Github
CVE-2020-24863 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-2020-24863.
| URL | Resource |
|---|---|
| http://www.midnightbsd.org/security/adv/MIDNIGHTBSD-SA-20:01.txt | Exploit Vendor Advisory |
| https://github.com/MidnightBSD/src/blob/1691c07ff4f27b97220a5d65e217341e477f4014/sys/kern/vfs_syscalls.c | Exploit Third Party Advisory |
| https://www.freebsd.org/security/advisories/FreeBSD-EN-20:18.getfsstat.asc | Patch Vendor Advisory |
| https://www.midnightbsd.org/notes/ | Release Notes 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).
CVE Data Analysis, CVE Monitor, CVE EXP Prediction Based on Deep Learning. 1999-2020年存量CVE数据分析、监控CVE增量更新、基于深度学习的CVE EXP预测和自动化推送
Python
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-24863 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-24863 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]
Sep. 11, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:N/I:N/A:C) Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Changed Reference Type http://www.midnightbsd.org/security/adv/MIDNIGHTBSD-SA-20:01.txt No Types Assigned http://www.midnightbsd.org/security/adv/MIDNIGHTBSD-SA-20:01.txt Exploit, Vendor Advisory Changed Reference Type https://github.com/MidnightBSD/src/blob/1691c07ff4f27b97220a5d65e217341e477f4014/sys/kern/vfs_syscalls.c No Types Assigned https://github.com/MidnightBSD/src/blob/1691c07ff4f27b97220a5d65e217341e477f4014/sys/kern/vfs_syscalls.c Exploit, Third Party Advisory Changed Reference Type https://www.freebsd.org/security/advisories/FreeBSD-EN-20:18.getfsstat.asc No Types Assigned https://www.freebsd.org/security/advisories/FreeBSD-EN-20:18.getfsstat.asc Patch, Vendor Advisory Changed Reference Type https://www.midnightbsd.org/notes/ No Types Assigned https://www.midnightbsd.org/notes/ Release Notes, Vendor Advisory Added CWE NIST CWE-787 Added CPE Configuration OR *cpe:2.3:a:midnightbsd:midnightbsd:*:*:*:*:*:*:*:* versions up to (excluding) 1.2.7 *cpe:2.3:a:midnightbsd:midnightbsd:*:*:*:*:*:*:*:* versions from (including) 1.3 up to (including) 2020-08-19 Added CPE Configuration OR *cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:* versions up to (including) 11.4
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-24863 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-2020-24863
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.07 }} 0.00%
score
0.29112
percentile