PUB-A-190011721

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Import Source
https://storage.googleapis.com/android-osv-test/PUB-A-190011721.json
JSON Data
https://api.osv.dev/v1/vulns/PUB-A-190011721
Aliases
Published
2021-12-01T00:00:00Z
Modified
2024-10-23T16:43:06.926828Z
Summary
[none]
Details

In retrieveptrlimit and related functions of verifier.c, there is a possible out of bounds write due to a heap buffer 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
:2021-12-05

Affected versions

Other

Kernel

Ecosystem specific 

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            "source": "https://android.googlesource.com/kernel/common/+/4e2c7b297431",
            "deprecated": false,
            "signature_version": "v1",
            "target": {
                "file": "kernel/bpf/verifier.c",
                "function": "adjust_ptr_min_max_vals"
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    "fixes": [
        "https://android.googlesource.com/kernel/common/+/4e2c7b297431",
        "https://android.googlesource.com/kernel/common/+/c87ef240a8bb",
        "https://android.googlesource.com/kernel/common/+/27acfd11ba17"
    ],
    "spl": "2021-12-05",
    "severity": "Moderate",
    "types": [
        "EoP"
    ]
}