CVE-2020-0423

high
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

In binder_release_work of binder.c, there is a possible use-after-free due to improper locking. This could lead to local escalation of privilege in the kernel with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-161151868References: N/A

References

https://source.android.com/security/bulletin/2020-10-01

https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html

Details

Source: MITRE

Published: 2020-10-14

Updated: 2021-07-21

Type: CWE-667

Risk Information

CVSS v2

Base Score: 7.2

Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

Impact Score: 10

Exploitability Score: 3.9

Severity: HIGH

CVSS v3

Base Score: 7.8

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 1.8

Severity: HIGH

Vulnerable Software

Configuration 1

OR

cpe:2.3:o:google:android:-:*:*:*:*:*:*:*

Tenable Plugins

View all (8 total)

IDNameProductFamilySeverity
148494Ubuntu 20.04 LTS : Linux kernel (OEM) vulnerabilities (USN-4912-1)NessusUbuntu Local Security Checks
high
147588EulerOS Virtualization for ARM 64 3.0.2.0 : kernel (EulerOS-SA-2021-1386)NessusHuawei Local Security Checks
high
144749Ubuntu 16.04 LTS / 18.04 LTS : Linux kernel vulnerabilities (USN-4680-1)NessusUbuntu Local Security Checks
medium
144097Debian DLA-2483-1 : linux-4.19 security updateNessusDebian Local Security Checks
high
143431Ubuntu 18.04 LTS / 20.04 LTS : Linux kernel vulnerabilities (USN-4658-1)NessusUbuntu Local Security Checks
high
143429Ubuntu 20.10 : Linux kernel vulnerabilities (USN-4659-1)NessusUbuntu Local Security Checks
high
142978Amazon Linux AMI : kernel (ALAS-2020-1446)NessusAmazon Linux Local Security Checks
high
142722Amazon Linux 2 : kernel (ALAS-2020-1556)NessusAmazon Linux Local Security Checks
high