ASB-A-166667403

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Import Source
https://storage.googleapis.com/android-osv/ASB-A-166667403.json
JSON Data
https://api.osv.dev/v1/vulns/ASB-A-166667403
Aliases
  • A-166667403
  • CVE-2021-0321
Published
2021-01-01T00:00:00Z
Modified
2026-06-16T15:04:57.126039127Z
Summary
[none]
Details

In enforceDumpPermissionForPackage of ActivityManagerService.java, there is a possible way to determine if a package is installed 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

Affected packages

Android / platform/frameworks/base

Package

Name
platform/frameworks/base

Affected ranges

Type
ECOSYSTEM
Events
Introduced
11:0
Fixed
11:2021-01-01

Affected versions

Other
11

Ecosystem specific 

{
    "types": [
        "ID"
    ],
    "severity": "High",
    "fixes": [
        "https://android.googlesource.com/platform/frameworks/base/+/b57d1409c52478d37f006145949be8b4591b9898"
    ],
    "spl": "2021-01-01",
    "vanir_signatures": [
        {
            "deprecated": false,
            "target": {
                "file": "services/core/java/com/android/server/am/ActivityManagerService.java",
                "function": "enforceDumpPermissionForPackage"
            },
            "source": "https://android.googlesource.com/platform/frameworks/base/+/b57d1409c52478d37f006145949be8b4591b9898",
            "signature_version": "v1",
            "digest": {
                "function_hash": "328253270580842359078835002729645875131",
                "length": 528.0
            },
            "id": "ASB-A-166667403-428b1cd9",
            "signature_type": "Function"
        },
        {
            "deprecated": false,
            "target": {
                "file": "services/core/java/com/android/server/am/ActivityManagerService.java"
            },
            "signature_type": "Line",
            "digest": {
                "line_hashes": [
                    "66739392362753218442585105965303547325",
                    "145926465871825836412424759016862391594",
                    "329393497864843757273400944767997417391",
                    "240352082606933695125583394349835098154",
                    "178573031860012575606062721245589632733",
                    "187143755928885058173661795639757861376",
                    "89270393170113699491151210272260982806"
                ],
                "threshold": 0.9
            },
            "signature_version": "v1",
            "source": "https://android.googlesource.com/platform/frameworks/base/+/b57d1409c52478d37f006145949be8b4591b9898",
            "id": "ASB-A-166667403-6e686f27"
        }
    ]
}

Database specific

source 
"https://storage.googleapis.com/android-osv/ASB-A-166667403.json"