ASB-A-156741968

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Import Source
https://storage.googleapis.com/android-osv/ASB-A-156741968.json
JSON Data
https://api.osv.dev/v1/vulns/ASB-A-156741968
Aliases
  • A-156741968
  • CVE-2020-0257
Published
2020-08-01T00:00:00Z
Modified
2026-06-08T15:01:31.246215948Z
Summary
[none]
Details

In SpecializeCommon of comandroidinternalosZygote.cpp, there is a permissions bypass due to an incomplete cleanup. This could lead to local escalation of privilege in isolated processes 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
10:0
Fixed
10:2020-08-01

Affected versions

Other
10

Ecosystem specific 

{
    "types": [
        "EoP"
    ],
    "spl": "2020-08-01",
    "severity": "High",
    "fixes": [
        "https://android.googlesource.com/platform/frameworks/base/+/b26c7160cd1dfba9224ba12dc075ac3c658b18c3"
    ],
    "vanir_signatures": [
        {
            "digest": {
                "length": 440.0,
                "function_hash": "221580645694389668469652384512945746343"
            },
            "target": {
                "file": "core/jni/com_android_internal_os_Zygote.cpp",
                "function": "SetGids"
            },
            "signature_type": "Function",
            "signature_version": "v1",
            "id": "ASB-A-156741968-47487d92",
            "source": "https://android.googlesource.com/platform/frameworks/base/+/b26c7160cd1dfba9224ba12dc075ac3c658b18c3",
            "deprecated": false
        },
        {
            "digest": {
                "length": 4101.0,
                "function_hash": "197577848572201397478683155651266247640"
            },
            "target": {
                "file": "core/jni/com_android_internal_os_Zygote.cpp",
                "function": "SpecializeCommon"
            },
            "signature_type": "Function",
            "signature_version": "v1",
            "source": "https://android.googlesource.com/platform/frameworks/base/+/b26c7160cd1dfba9224ba12dc075ac3c658b18c3",
            "deprecated": false,
            "id": "ASB-A-156741968-af03e017"
        },
        {
            "digest": {
                "threshold": 0.9,
                "line_hashes": [
                    "156995358100940558694682874028509854541",
                    "79154519901110546233218960467523212829",
                    "32750675185595139678675839296213207882",
                    "319198853492330949671304688986833750067",
                    "168301897292866904821009824673942269918",
                    "308126396784674618027389634183764262410",
                    "82710596588014979945610629270948645285",
                    "65695610563329677602036097542908687947",
                    "154269463673747069418350979161716944582"
                ]
            },
            "target": {
                "file": "core/jni/com_android_internal_os_Zygote.cpp"
            },
            "signature_type": "Line",
            "signature_version": "v1",
            "deprecated": false,
            "id": "ASB-A-156741968-cb462bd3",
            "source": "https://android.googlesource.com/platform/frameworks/base/+/b26c7160cd1dfba9224ba12dc075ac3c658b18c3"
        }
    ]
}

Database specific

source 
"https://storage.googleapis.com/android-osv/ASB-A-156741968.json"