ASB-A-248354871

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Import Source
https://storage.googleapis.com/android-osv-test/ASB-A-248354871.json
JSON Data
https://api.osv.dev/v1/vulns/ASB-A-248354871
Aliases
Published
2023-02-01T00:00:00Z
Modified
2024-09-19T16:28:35.142646Z
Summary
Linux kernel vulnerability advisory
Details

In movepagetables of mremap.c, there is a possible memory corruption due to improper locking. This could lead to local escalation of privilege in the kernel with no additional 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
:2023-02-05

Affected versions

Other

Kernel

Ecosystem specific 

{
    "vanir_signatures": [
        {
            "digest": {
                "threshold": 0.9,
                "line_hashes": [
                    "293107523006782170342915766364617741132",
                    "87401739677635330013171271437987579335",
                    "272868140249575172420209188219706328104",
                    "57217362785488302902076346287567644741",
                    "170519029266228521037673515456124853246",
                    "197828024005851044805461510354402357464",
                    "177013223675664145722138003685396137488",
                    "166769226735134007421445708649935597014",
                    "319197634151073473554883714877649405961"
                ]
            },
            "id": "ASB-A-248354871-5eb75419",
            "source": "https://android.googlesource.com/kernel/common/+/482efd771f45b37a7da107bd8289b52164574aaa",
            "deprecated": false,
            "signature_version": "v1",
            "target": {
                "file": "mm/mremap.c"
            },
            "signature_type": "Line"
        },
        {
            "digest": {
                "length": 1550.0,
                "function_hash": "227370452252118767884237206931649063740"
            },
            "id": "ASB-A-248354871-fc1b86b7",
            "source": "https://android.googlesource.com/kernel/common/+/482efd771f45b37a7da107bd8289b52164574aaa",
            "deprecated": false,
            "signature_version": "v1",
            "target": {
                "file": "mm/mremap.c",
                "function": "move_page_tables"
            },
            "signature_type": "Function"
        }
    ],
    "fixes": [
        "https://android.googlesource.com/kernel/common/+/482efd771f45b37a7da107bd8289b52164574aaa"
    ],
    "spl": "2023-02-05",
    "severity": "High",
    "types": [
        "EoP"
    ]
}