CVE-2022-20421
Android kernel Use After Free Vulnerability in binder_inc_ref_for_node Function
Description
In binder_inc_ref_for_node of binder.c, there is a possible way to corrupt memory due to a use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-239630375References: Upstream kernel
INFO
Published Date :
Oct. 11, 2022, 8:15 p.m.
Last Modified :
Dec. 3, 2022, 2:42 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.8
Public PoC/Exploit Available at Github
CVE-2022-20421 has a 4 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-2022-20421.
| URL | Resource |
|---|---|
| https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html | Mailing List Third Party Advisory |
| https://source.android.com/security/bulletin/2022-10-01 | Patch Vendor Advisory |
| https://www.debian.org/security/2022/dsa-5257 | 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).
EndPointX is a tool designed to automate the process of decompiling APKs and extracting endpoints.
android automation binder endpoints inter-process-communication java osint recon reverse-engineering smali
Shell
None
Java Makefile C
Bad Spin: Android Binder Privilege Escalation Exploit (CVE-2022-20421)
Java Makefile C
A collection of links related to Linux kernel security and exploitation
linux-kernel kernel-exploitation exploit privilege-escalation security
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2022-20421 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-20421 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 -
Modified Analysis by [email protected]
Dec. 03, 2022
Action Type Old Value New Value Changed Reference Type https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html No Types Assigned https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html Mailing List, Third Party Advisory Changed CPE Configuration OR *cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* OR *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Nov. 01, 2022
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html [No Types Assigned] -
Modified Analysis by [email protected]
Oct. 28, 2022
Action Type Old Value New Value Changed Reference Type https://www.debian.org/security/2022/dsa-5257 No Types Assigned https://www.debian.org/security/2022/dsa-5257 Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Oct. 19, 2022
Action Type Old Value New Value Added Reference https://www.debian.org/security/2022/dsa-5257 [No Types Assigned] -
Initial Analysis by [email protected]
Oct. 13, 2022
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://source.android.com/security/bulletin/2022-10-01 No Types Assigned https://source.android.com/security/bulletin/2022-10-01 Patch, Vendor Advisory Added CWE NIST CWE-416 Added CPE Configuration OR *cpe:2.3:o:google:android:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-20421 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-2022-20421
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
0.05635
percentile