In hasNamedWallpaper of WallpaperManagerService.java, there is a possible way to determine whether an app is installed, without query permissions, due to a missing permission check. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12Android ID: A-193800652

References

• https://nvd.nist.gov/vuln/detail/CVE-2021-1025
• https://source.android.com/security/bulletin/pixel/2021-12-01