ASB-A-200682135

See a problem?
Import Source
https://storage.googleapis.com/android-osv/ASB-A-200682135.json
JSON Data
https://api.osv.dev/v1/vulns/ASB-A-200682135
Aliases
  • A-200682135
  • CVE-2021-39663
Published
2022-02-01T00:00:00Z
Modified
2025-12-12T17:16:39.116315Z
Summary
[none]
Details

In openFileAndEnforcePathPermissionsHelper of MediaProvider.java, there is a possible bypass of a permissions check due to a confused deputy. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation.

References

Affected packages

Android / platform/packages/providers/MediaProvider

Package

Name
platform/packages/providers/MediaProvider

Affected ranges

Type
ECOSYSTEM
Events
Introduced
10:0
Fixed
10:2022-02-01

Affected versions

Other

10

Ecosystem specific 

{
    "spl": "2022-02-01",
    "vanir_signatures": [
        {
            "signature_type": "Function",
            "source": "https://android.googlesource.com/platform/packages/providers/MediaProvider/+/b50868065a4cf0c15e96aea66732afc89c388022",
            "id": "ASB-A-200682135-5f359beb",
            "deprecated": false,
            "target": {
                "file": "src/com/android/providers/media/MediaProvider.java",
                "function": "openTypedAssetFileCommon"
            },
            "digest": {
                "function_hash": "165616400455024994892517906895191784291",
                "length": 558.0
            },
            "signature_version": "v1"
        },
        {
            "signature_type": "Function",
            "source": "https://android.googlesource.com/platform/packages/providers/MediaProvider/+/b50868065a4cf0c15e96aea66732afc89c388022",
            "id": "ASB-A-200682135-8b355753",
            "deprecated": false,
            "target": {
                "file": "src/com/android/providers/media/MediaProvider.java",
                "function": "openFileCommon"
            },
            "digest": {
                "function_hash": "112285523604073142095418550921513705140",
                "length": 1420.0
            },
            "signature_version": "v1"
        },
        {
            "signature_type": "Function",
            "source": "https://android.googlesource.com/platform/packages/providers/MediaProvider/+/b50868065a4cf0c15e96aea66732afc89c388022",
            "id": "ASB-A-200682135-962c8aa2",
            "deprecated": false,
            "target": {
                "file": "src/com/android/providers/media/MediaProvider.java",
                "function": "openFileAndEnforcePathPermissionsHelper"
            },
            "digest": {
                "function_hash": "284525932788735169382226148928346094244",
                "length": 2377.0
            },
            "signature_version": "v1"
        },
        {
            "signature_type": "Line",
            "source": "https://android.googlesource.com/platform/packages/providers/MediaProvider/+/b50868065a4cf0c15e96aea66732afc89c388022",
            "id": "ASB-A-200682135-e3310dcc",
            "deprecated": false,
            "target": {
                "file": "src/com/android/providers/media/MediaProvider.java"
            },
            "digest": {
                "threshold": 0.9,
                "line_hashes": [
                    "301230924079322411707306435658694167231",
                    "119934892804168007671710819972308779864",
                    "199487414863393805613893393325696610053",
                    "162360384384749213345567536258975167779",
                    "281055015758836343142548915437798574571",
                    "221706412158811096265614557779732931585",
                    "182383650732400534176262118348651346131",
                    "185664529873386261295334187875465343000",
                    "172024512681413809249593304452825948661",
                    "187769825546625509013337805616455216952",
                    "253087205555732787596386662491868256880",
                    "134226128641440851766864797113642402358",
                    "95336984391022107399284068656457382680",
                    "82787907556720293565485704345509551568",
                    "213204510778106549042434355760192794507",
                    "332959931777799172079287323201771234549",
                    "133596333348576970970733937787512775629",
                    "1694689932720584837483373116289838099",
                    "246425859373065730087414984618554517129",
                    "69207298254231555346135493797051147018",
                    "146011506290389155650539787564751170842",
                    "250478298507667485277041063687181726894",
                    "158519083428419644750957911501626877546",
                    "254102938929140759440146827680883211708",
                    "162879964757682414177023233577190795421",
                    "310358380949384310875695053651920800400",
                    "43233373684009478504010354450779091670",
                    "165570269486723337793374398703277539992",
                    "197756927111725734253362481862997469015",
                    "185040904275557993485879863883766089670",
                    "3846512432080304883829143243894092442",
                    "24322872871318015983352795926468960142",
                    "315278518823851250907608978082096455149",
                    "103539333113218161862557549421981177779",
                    "335093249454313703290108671264029322501",
                    "83724094901120736497911731160934322367",
                    "303279304179388736378044696196841160238",
                    "99654987882633657501185966106724953567",
                    "333337238505504014933896228287819450521",
                    "330401764247701592708522675639968086618",
                    "11559575761700046304819877678158831154",
                    "63189297716160860855887423975874749820"
                ]
            },
            "signature_version": "v1"
        }
    ],
    "types": [
        "EoP"
    ],
    "fixes": [
        "https://android.googlesource.com/platform/packages/providers/MediaProvider/+/b50868065a4cf0c15e96aea66732afc89c388022"
    ],
    "severity": "High"
}