PUB-A-186404356

    Dashboard / Vulnerabilities / PUB-A-186404356

    PUB-A-186404356

    Published: 1 Dec 2021Last Modified: 23 Sept 2026

    Summary:

    Details: In checkExistsAndEnforceCannotModifyImmutablyRestrictedPermission of PermissionManagerService.java, there is a possible way to determine whether an app is installed, without query permissions, due to side channel information disclosure. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.

    References: https://source.android.com/security/bulletin/2021-12-01, https://android.googlesource.com/platform/frameworks/base/+/e191ca0a7c18e6bfdabcd02aff4ddf86727c34c6

    Affected packages

    Package

    Name: platform/frameworks/base

    Purl:

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 12:0
    Fixed -12:2021-12-01

    Affected versions

    12

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    PUB-A-186404356 | CVE-DB