CVE-2023-21035

Publication date 24 March 2023

Last updated 26 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

In multiple functions of BackupHelper.java, there is a possible way for an app to get permissions previously granted to another app with the same package name due to a permissions bypass. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-13Android ID: A-184847040

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
android-framework-23	24.10 oracular	Ignored
	24.04 LTS noble	Ignored
	23.10 mantic	Ignored end of life, was needs-triage
	23.04 lunar	Ignored end of life, was needs-triage
	22.10 kinetic	Ignored end of life, was needs-triage
	22.04 LTS jammy	Ignored
	20.04 LTS focal	Ignored
	18.04 LTS bionic	Ignored end of standard support, was needs-triage
	16.04 LTS xenial	Not in release
	14.04 LTS trusty	Not in release

Notes

mdeslaur

We do not support security updates for Android components, marking as ignored.

Severity score breakdown

CVSS version: CVSS v3.0

Base score 7.8 · High

Base metrics

Parameter	Value
Attack vector	Local
Attack complexity	Low
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality impact	High
Integrity impact	High
Availability impact	High

Scores

Parameter	Value
Base score	7.8 · High
Exploitability score	-
Impact score	-

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