PUB-A-197155069

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Import Source
https://storage.googleapis.com/android-osv-test/PUB-A-197155069.json
JSON Data
https://api.osv.dev/v1/vulns/PUB-A-197155069
Aliases
Published
2021-10-01T00:00:00Z
Modified
2024-10-23T16:43:06.926828Z
Summary
[none]
Details

In _htabmaplookupanddeletebatch of hashtab.c, there is a possible out of bounds write due to an integer overflow. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.

References

Affected packages

Android / :linux_kernel:

Package

Name
:linux_kernel:

Affected ranges

Type
ECOSYSTEM
Events
Introduced
:0
Fixed
:2021-10-05

Affected versions

Other

Kernel

Ecosystem specific 

{
    "vanir_signatures": [
        {
            "digest": {
                "length": 3574.0,
                "function_hash": "127331074739203562560229732259510439617"
            },
            "id": "PUB-A-197155069-5385d91f",
            "source": "https://android.googlesource.com/kernel/common/+/c4eb1f403243fc7bbb7de644db8587c03de36da6",
            "deprecated": false,
            "signature_version": "v1",
            "target": {
                "file": "kernel/bpf/hashtab.c",
                "function": "__htab_map_lookup_and_delete_batch"
            },
            "signature_type": "Function"
        },
        {
            "digest": {
                "threshold": 0.9,
                "line_hashes": [
                    "212658755389406059833830562300516653499",
                    "201381836538477114258617779280796146030",
                    "302285419246911275932144487388570272238",
                    "262131155964030128750198698395094825846",
                    "120523421720983727123488074848466022665"
                ]
            },
            "id": "PUB-A-197155069-dd80b817",
            "source": "https://android.googlesource.com/kernel/common/+/c4eb1f403243fc7bbb7de644db8587c03de36da6",
            "deprecated": false,
            "signature_version": "v1",
            "target": {
                "file": "kernel/bpf/hashtab.c"
            },
            "signature_type": "Line"
        }
    ],
    "fixes": [
        "https://android.googlesource.com/kernel/common/+/c4eb1f403243fc7bbb7de644db8587c03de36da6"
    ],
    "spl": "2021-10-05",
    "severity": "Moderate",
    "types": [
        "EoP"
    ]
}