ASB-A-167244818

See a problem?
Import Source
https://storage.googleapis.com/android-osv/ASB-A-167244818.json
JSON Data
https://api.osv.dev/v1/vulns/ASB-A-167244818
Aliases
  • A-167244818
  • CVE-2021-0319
Published
2021-01-01T00:00:00Z
Modified
2026-06-10T14:58:40.911641763Z
Summary
[none]
Details

In checkCallerIsSystemOr of CompanionDeviceManagerService.java, there is a possible way to get a nearby Bluetooth device's MAC address without appropriate permissions due to a permissions bypass. This could lead to local escalation of privilege that grants access to nearby MAC addresses, with User execution privileges needed. User interaction is needed for exploitation.

References

Affected packages

Android
platform/frameworks/base

Package

Name
platform/frameworks/base

Affected ranges

Type
ECOSYSTEM
Events
Introduced
8.0:0
Fixed
8.0:2021-01-01

Affected versions

8.*
8.0

Ecosystem specific 

{
    "types": [
        "EoP"
    ],
    "spl": "2021-01-01",
    "vanir_signatures": [
        {
            "id": "ASB-A-167244818-9cdc8120",
            "target": {
                "file": "services/companion/java/com/android/server/companion/CompanionDeviceManagerService.java",
                "function": "checkCallerIsSystemOr"
            },
            "digest": {
                "function_hash": "215306438312018792716161680217895491558",
                "length": 252.0
            },
            "signature_type": "Function",
            "deprecated": false,
            "source": "https://android.googlesource.com/platform/frameworks/base/+/0c17049d39b5a8867f030f6f36433564140e124a",
            "signature_version": "v1"
        },
        {
            "id": "ASB-A-167244818-f6aee0ea",
            "target": {
                "file": "services/companion/java/com/android/server/companion/CompanionDeviceManagerService.java"
            },
            "deprecated": false,
            "digest": {
                "line_hashes": [
                    "46529484947656830240619870944293011565",
                    "115095491502154654554552142375869085291",
                    "222788478004123297660585722521648190590",
                    "131290711615601143351865950679854116077"
                ],
                "threshold": 0.9
            },
            "signature_type": "Line",
            "source": "https://android.googlesource.com/platform/frameworks/base/+/0c17049d39b5a8867f030f6f36433564140e124a",
            "signature_version": "v1"
        }
    ],
    "fixes": [
        "https://android.googlesource.com/platform/frameworks/base/+/0c17049d39b5a8867f030f6f36433564140e124a"
    ],
    "severity": "High"
}

Database specific

source 
"https://storage.googleapis.com/android-osv/ASB-A-167244818.json"
platform/frameworks/base

Package

Name
platform/frameworks/base

Affected ranges

Type
ECOSYSTEM
Events
Introduced
8.1:0
Fixed
8.1:2021-01-01

Affected versions

8.*
8.1

Ecosystem specific 

{
    "types": [
        "EoP"
    ],
    "spl": "2021-01-01",
    "vanir_signatures": [
        {
            "id": "ASB-A-167244818-7a69eb42",
            "target": {
                "file": "services/companion/java/com/android/server/companion/CompanionDeviceManagerService.java",
                "function": "checkCallerIsSystemOr"
            },
            "deprecated": false,
            "digest": {
                "function_hash": "215306438312018792716161680217895491558",
                "length": 252.0
            },
            "signature_type": "Function",
            "source": "https://android.googlesource.com/platform/frameworks/base/+/0c17049d39b5a8867f030f6f36433564140e124a",
            "signature_version": "v1"
        },
        {
            "signature_type": "Line",
            "target": {
                "file": "services/companion/java/com/android/server/companion/CompanionDeviceManagerService.java"
            },
            "deprecated": false,
            "digest": {
                "line_hashes": [
                    "46529484947656830240619870944293011565",
                    "115095491502154654554552142375869085291",
                    "222788478004123297660585722521648190590",
                    "131290711615601143351865950679854116077"
                ],
                "threshold": 0.9
            },
            "id": "ASB-A-167244818-f2a0a3fb",
            "source": "https://android.googlesource.com/platform/frameworks/base/+/0c17049d39b5a8867f030f6f36433564140e124a",
            "signature_version": "v1"
        }
    ],
    "fixes": [
        "https://android.googlesource.com/platform/frameworks/base/+/0c17049d39b5a8867f030f6f36433564140e124a"
    ],
    "severity": "High"
}

Database specific

source 
"https://storage.googleapis.com/android-osv/ASB-A-167244818.json"
platform/frameworks/base

Package

Name
platform/frameworks/base

Affected ranges

Type
ECOSYSTEM
Events
Introduced
9:0
Fixed
9:2021-01-01

Affected versions

Other
9

Ecosystem specific 

{
    "types": [
        "EoP"
    ],
    "spl": "2021-01-01",
    "vanir_signatures": [
        {
            "id": "ASB-A-167244818-9db58b23",
            "target": {
                "file": "services/companion/java/com/android/server/companion/CompanionDeviceManagerService.java"
            },
            "deprecated": false,
            "digest": {
                "line_hashes": [
                    "46529484947656830240619870944293011565",
                    "115095491502154654554552142375869085291",
                    "222788478004123297660585722521648190590",
                    "131290711615601143351865950679854116077"
                ],
                "threshold": 0.9
            },
            "signature_type": "Line",
            "source": "https://android.googlesource.com/platform/frameworks/base/+/0c17049d39b5a8867f030f6f36433564140e124a",
            "signature_version": "v1"
        },
        {
            "signature_type": "Function",
            "target": {
                "file": "services/companion/java/com/android/server/companion/CompanionDeviceManagerService.java",
                "function": "checkCallerIsSystemOr"
            },
            "deprecated": false,
            "digest": {
                "function_hash": "215306438312018792716161680217895491558",
                "length": 252.0
            },
            "id": "ASB-A-167244818-f1d5fbfa",
            "source": "https://android.googlesource.com/platform/frameworks/base/+/0c17049d39b5a8867f030f6f36433564140e124a",
            "signature_version": "v1"
        }
    ],
    "fixes": [
        "https://android.googlesource.com/platform/frameworks/base/+/0c17049d39b5a8867f030f6f36433564140e124a"
    ],
    "severity": "High"
}

Database specific

source 
"https://storage.googleapis.com/android-osv/ASB-A-167244818.json"
platform/frameworks/base

Package

Name
platform/frameworks/base

Affected ranges

Type
ECOSYSTEM
Events
Introduced
10:0
Fixed
10:2021-01-01

Affected versions

Other
10

Ecosystem specific 

{
    "types": [
        "EoP"
    ],
    "spl": "2021-01-01",
    "vanir_signatures": [
        {
            "id": "ASB-A-167244818-4adfd78f",
            "target": {
                "file": "services/companion/java/com/android/server/companion/CompanionDeviceManagerService.java",
                "function": "checkCallerIsSystemOr"
            },
            "deprecated": false,
            "digest": {
                "function_hash": "215306438312018792716161680217895491558",
                "length": 252.0
            },
            "signature_type": "Function",
            "source": "https://android.googlesource.com/platform/frameworks/base/+/0c17049d39b5a8867f030f6f36433564140e124a",
            "signature_version": "v1"
        },
        {
            "id": "ASB-A-167244818-b5eb6081",
            "target": {
                "file": "services/companion/java/com/android/server/companion/CompanionDeviceManagerService.java"
            },
            "deprecated": false,
            "digest": {
                "line_hashes": [
                    "46529484947656830240619870944293011565",
                    "115095491502154654554552142375869085291",
                    "222788478004123297660585722521648190590",
                    "131290711615601143351865950679854116077"
                ],
                "threshold": 0.9
            },
            "signature_type": "Line",
            "source": "https://android.googlesource.com/platform/frameworks/base/+/0c17049d39b5a8867f030f6f36433564140e124a",
            "signature_version": "v1"
        }
    ],
    "fixes": [
        "https://android.googlesource.com/platform/frameworks/base/+/0c17049d39b5a8867f030f6f36433564140e124a"
    ],
    "severity": "High"
}

Database specific

source 
"https://storage.googleapis.com/android-osv/ASB-A-167244818.json"
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": [
        "EoP"
    ],
    "spl": "2021-01-01",
    "vanir_signatures": [
        {
            "signature_type": "Line",
            "target": {
                "file": "services/companion/java/com/android/server/companion/CompanionDeviceManagerService.java"
            },
            "deprecated": false,
            "digest": {
                "line_hashes": [
                    "46529484947656830240619870944293011565",
                    "115095491502154654554552142375869085291",
                    "222788478004123297660585722521648190590",
                    "131290711615601143351865950679854116077"
                ],
                "threshold": 0.9
            },
            "id": "ASB-A-167244818-8777c428",
            "source": "https://android.googlesource.com/platform/frameworks/base/+/0c17049d39b5a8867f030f6f36433564140e124a",
            "signature_version": "v1"
        },
        {
            "id": "ASB-A-167244818-d82a610c",
            "target": {
                "file": "services/companion/java/com/android/server/companion/CompanionDeviceManagerService.java",
                "function": "checkCallerIsSystemOr"
            },
            "deprecated": false,
            "signature_type": "Function",
            "digest": {
                "function_hash": "215306438312018792716161680217895491558",
                "length": 252.0
            },
            "source": "https://android.googlesource.com/platform/frameworks/base/+/0c17049d39b5a8867f030f6f36433564140e124a",
            "signature_version": "v1"
        }
    ],
    "fixes": [
        "https://android.googlesource.com/platform/frameworks/base/+/0c17049d39b5a8867f030f6f36433564140e124a"
    ],
    "severity": "High"
}

Database specific

source 
"https://storage.googleapis.com/android-osv/ASB-A-167244818.json"