PUB-A-245727875

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Import Source
https://storage.googleapis.com/android-osv/PUB-A-245727875.json
JSON Data
https://api.osv.dev/v1/vulns/PUB-A-245727875
Aliases
  • A-245727875
  • CVE-2022-20514
Published
2022-12-01T00:00:00Z
Modified
2025-11-21T16:23:56.435667Z
Summary
[none]
Details

In acquireFabricatedOverlayIterator, nextFabricatedOverlayInfos, and releaseFabricatedOverlayIterator of Idmap2Service.cpp, there is a possible out of bounds write due to a use after free. This could lead to local escalation of privilege with System 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
13:0
Fixed
13:2022-12-01

Affected versions

Other

13

Ecosystem specific 

{
    "fixes": [
        "https://android.googlesource.com/platform/frameworks/base/+/7b4d4ca5e91442ddbfcccb55715d75a67caf3eff"
    ],
    "types": [
        "EoP"
    ],
    "vanir_signatures": [
        {
            "match_only_versions": [
                "13"
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            "deprecated": false,
            "source": "https://android.googlesource.com/platform/frameworks/base/+/7b4d4ca5e91442ddbfcccb55715d75a67caf3eff",
            "signature_type": "Line",
            "digest": {
                "line_hashes": [
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                    "293266033177949486040250603326668613039",
                    "195458246910038704047738189155196304942"
                ],
                "threshold": 0.9
            },
            "signature_version": "v1",
            "target": {
                "file": "cmds/idmap2/idmap2d/Idmap2Service.h"
            },
            "id": "PUB-A-245727875-0c9cf060"
        },
        {
            "match_only_versions": [
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            ],
            "deprecated": false,
            "source": "https://android.googlesource.com/platform/frameworks/base/+/7b4d4ca5e91442ddbfcccb55715d75a67caf3eff",
            "signature_type": "Function",
            "digest": {
                "length": 188.0,
                "function_hash": "128238835769563262526376303371421509067"
            },
            "signature_version": "v1",
            "target": {
                "file": "cmds/idmap2/idmap2d/Idmap2Service.cpp",
                "function": "Idmap2Service::releaseFabricatedOverlayIterator"
            },
            "id": "PUB-A-245727875-18d69b9e"
        },
        {
            "signature_type": "Line",
            "deprecated": false,
            "digest": {
                "line_hashes": [
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                "threshold": 0.9
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            "signature_version": "v1",
            "source": "https://android.googlesource.com/platform/frameworks/base/+/7b4d4ca5e91442ddbfcccb55715d75a67caf3eff",
            "target": {
                "file": "services/core/java/com/android/server/om/IdmapDaemon.java"
            },
            "id": "PUB-A-245727875-32aa3481"
        },
        {
            "match_only_versions": [
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            "source": "https://android.googlesource.com/platform/frameworks/base/+/7b4d4ca5e91442ddbfcccb55715d75a67caf3eff",
            "signature_type": "Function",
            "digest": {
                "length": 274.0,
                "function_hash": "277250484928001438501085393364757954445"
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            "signature_version": "v1",
            "target": {
                "file": "cmds/idmap2/idmap2d/Idmap2Service.cpp",
                "function": "Idmap2Service::acquireFabricatedOverlayIterator"
            },
            "id": "PUB-A-245727875-73029bb1"
        },
        {
            "match_only_versions": [
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            "source": "https://android.googlesource.com/platform/frameworks/base/+/7b4d4ca5e91442ddbfcccb55715d75a67caf3eff",
            "signature_type": "Line",
            "digest": {
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            "signature_version": "v1",
            "target": {
                "file": "cmds/idmap2/idmap2d/Idmap2Service.cpp"
            },
            "id": "PUB-A-245727875-ab08fb95"
        },
        {
            "signature_type": "Function",
            "deprecated": false,
            "digest": {
                "length": 690.0,
                "function_hash": "338104360767757828585167012306991980203"
            },
            "signature_version": "v1",
            "source": "https://android.googlesource.com/platform/frameworks/base/+/7b4d4ca5e91442ddbfcccb55715d75a67caf3eff",
            "target": {
                "file": "services/core/java/com/android/server/om/IdmapDaemon.java",
                "function": "getFabricatedOverlayInfos"
            },
            "id": "PUB-A-245727875-fea677b1"
        }
    ],
    "spl": "2022-12-01",
    "severity": "Moderate"
}