CVE-2022-20421

HIGH

Android - Memory Corruption

Title source: llm
STIX 2.1

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

Exploits (2)

nomisec WORKING POC 280 stars
by 0xkol · poc
https://github.com/0xkol/badspin
nomisec NO CODE
by sandiyochristan · poc
https://github.com/sandiyochristan/oo

References (3)

Core 3
Core References
Third Party Advisory vendor-advisory
https://www.debian.org/security/2022/dsa-5257
Mailing List, Third Party Advisory mailing-list
https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html

Scores

CVSS v3 7.8
EPSS 0.0543
EPSS Percentile 90.2%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-416
Status published
Products (3)
debian/debian_linux 10.0
debian/debian_linux 11.0
google/android
Published Oct 11, 2022
Tracked Since Feb 18, 2026