CVE-2020-27194
Linux Kernel BPF Verifier scalar32_min_max_or Use After Free Vulnerability
Description
An issue was discovered in the Linux kernel before 5.8.15. scalar32_min_max_or in kernel/bpf/verifier.c mishandles bounds tracking during use of 64-bit values, aka CID-5b9fbeb75b6a.
INFO
Published Date :
Oct. 16, 2020, 9:15 p.m.
Last Modified :
June 28, 2022, 2:11 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
Public PoC/Exploit Available at Github
CVE-2020-27194 has a 16 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-2020-27194.
| URL | Resource |
|---|---|
| https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.15 | Release Notes Vendor Advisory |
| https://github.com/torvalds/linux/commit/5b9fbeb75b6a98955f628e205ac26689bcb1383e | Patch 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).
None
C Shell Python Assembly Ruby Makefile Meson
Auto Root / Privilege Escalation Exploit
autoroot privilege privilege-escalation root
Shell
一些cve复现环境
Shell C
Linux privilege escalation exploits collection.
C Shell Python Assembly Ruby Makefile Meson
None
None
C
Linux Eelvation(持续更新)
cve-2021-3156 cve-2019-7304 cve-2019-13272 cve-2018-18955 cve-2018-1000001 cve-2018-17182 cve-2017-1000367 cve-2017-1000112 cve-2017-16995 cve-2017-16939 linux-kernel elevation cve-2021-4034 cve-2022-0847
C Shell Python Ruby Makefile HTML
None
None
Check linux sources dump for known CVEs.
linux kernel cve cve-scanning coccinelle
Python SmPL
Linux kernel CVE exploit analysis report and relative debug environment. You don't need to compile Linux kernel and configure your environment anymore.
C Shell Makefile Meson
my exp for CVE-2020-27194, tested on linux kernel 5.8.14.
Shell C
None
C
Anything about kernel security. CTF kernel pwn, kernel exploit, kernel fuzz and kernel defense paper, kernel debugging technique, kernel CVE debug.
C Shell Makefile
Some exploits I have written to showcase and to share
PHP Python C JavaScript
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-27194 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-27194 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 -
CWE Remap by [email protected]
Jun. 28, 2022
Action Type Old Value New Value Changed CWE CWE-119 CWE-681 -
Initial Analysis by [email protected]
Oct. 30, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:N/I:N/A:P) Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.15 No Types Assigned https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.15 Release Notes, Vendor Advisory Changed Reference Type https://github.com/torvalds/linux/commit/5b9fbeb75b6a98955f628e205ac26689bcb1383e No Types Assigned https://github.com/torvalds/linux/commit/5b9fbeb75b6a98955f628e205ac26689bcb1383e Patch, Third Party Advisory Added CWE NIST CWE-119 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 5.8.15
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-27194 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-2020-27194
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.04 }} 0.00%
score
0.10264
percentile