ASB-A-212694559

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Import Source

https://storage.googleapis.com/android-osv/ASB-A-212694559.json

JSON Data

https://api.osv.dev/v1/vulns/ASB-A-212694559

Aliases

A-212694559
CVE-2021-39805

Published

2022-04-01T00:00:00Z

Modified

2026-04-17T15:55:28.020024Z

Summary

[none]

Details

In l2cbleprocesssigcmd of l2cble.cc, there is a possible out of bounds read due to a missing bounds check. This could lead to remote information disclosure through Bluetooth with no additional execution privileges needed. User interaction is not needed for exploitation.

References

Affected packages

Android / platform/system/bt

Package

Name: platform/system/bt

Affected ranges

Type: ECOSYSTEM
Events: Introduced

12:0

Fixed

12:2022-04-01

Affected versions

Other

Ecosystem specific

{
    "vanir_signatures": [
        {
            "digest": {
                "length": 15123.0,
                "function_hash": "254438474118475900626320567562364881114"
            },
            "id": "ASB-A-212694559-c4ffd8eb",
            "deprecated": false,
            "signature_version": "v1",
            "signature_type": "Function",
            "source": "https://android.googlesource.com/platform/system/bt/+/7f619cedc140b90faa290dbbc14d9c272fa4c6e6",
            "target": {
                "function": "l2cble_process_sig_cmd",
                "file": "stack/l2cap/l2c_ble.cc"
            }
        },
        {
            "digest": {
                "threshold": 0.9,
                "line_hashes": [
                    "135933616032082551739412714357276854940",
                    "79264447992587318913622116538105510541",
                    "250541454454778247075908588327572958977",
                    "225910774339375285031964598489356098800"
                ]
            },
            "id": "ASB-A-212694559-d0e9b347",
            "deprecated": false,
            "signature_version": "v1",
            "signature_type": "Line",
            "source": "https://android.googlesource.com/platform/system/bt/+/7f619cedc140b90faa290dbbc14d9c272fa4c6e6",
            "target": {
                "file": "stack/l2cap/l2c_ble.cc"
            }
        }
    ],
    "fixes": [
        "https://android.googlesource.com/platform/system/bt/+/7f619cedc140b90faa290dbbc14d9c272fa4c6e6"
    ],
    "types": [
        "ID"
    ],
    "spl": "2022-04-01",
    "severity": "High"
}

Database specific

source

"https://storage.googleapis.com/android-osv/ASB-A-212694559.json"