CVE-2020-15209

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Source
https://cve.org/CVERecord?id=CVE-2020-15209
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-15209.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2020-15209
Aliases
Downstream
Related
Published
2020-09-25T19:15:16.213Z
Modified
2026-03-13T22:16:05.907480Z
Severity
  • 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

In tensorflow-lite before versions 1.15.4, 2.0.3, 2.1.2, 2.2.1 and 2.3.1, a crafted TFLite model can force a node to have as input a tensor backed by a nullptr buffer. This can be achieved by changing a buffer index in the flatbuffer serialization to convert a read-only tensor to a read-write one. The runtime assumes that these buffers are written to before a possible read, hence they are initialized with nullptr. However, by changing the buffer index for a tensor and implicitly converting that tensor to be a read-write one, as there is nothing in the model that writes to it, we get a null pointer dereference. The issue is patched in commit 0b5662bc, and is released in TensorFlow versions 1.15.4, 2.0.3, 2.1.2, 2.2.1, or 2.3.1.

References

Affected packages

Git / github.com/tensorflow/tensorflow

Affected ranges

Type
GIT
Repo
https://github.com/tensorflow/tensorflow
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
df8c55ce12b5cfc6f29b01889f7773911a75e6ef
Introduced
64c3d382cadf7bbe8e7e99884bede8284ff67f56
Fixed
295ad2781683835be974faba0a191528d8079768
Introduced
e5bf8de410005de06a7ff5393fafdf832ef1d4ad
Fixed
ab35f2bf7132f9d20a0bea9a5d1849862737d4b4
Introduced
2b96f3662bd776e277f86997659e61046b56c315
Fixed
25fba035f3e453d94490932096282c7b0624bbb3
Introduced
b36436b087bd8e8701ef51718179037cccdfc26e
Fixed
fcc4b966f1265f466e82617020af93670141b009
Fixed
0b5662bc2be13a8c8f044d925d87fb6e56247cd8
Database specific 
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.15.4"
        },
        {
            "introduced": "2.0.0"
        },
        {
            "fixed": "2.0.3"
        },
        {
            "introduced": "2.1.0"
        },
        {
            "fixed": "2.1.2"
        },
        {
            "introduced": "2.2.0"
        },
        {
            "fixed": "2.2.1"
        },
        {
            "introduced": "2.3.0"
        },
        {
            "fixed": "2.3.1"
        }
    ]
}

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-15209.json"
unresolved_ranges 
[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "15.2"
            }
        ]
    }
]
vanir_signatures 
[
    {
        "signature_version": "v1",
        "target": {
            "file": "tensorflow/lite/model_test.cc"
        },
        "source": "https://github.com/tensorflow/tensorflow/commit/0b5662bc2be13a8c8f044d925d87fb6e56247cd8",
        "deprecated": false,
        "digest": {
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            "threshold": 0.9
        },
        "id": "CVE-2020-15209-1c08137f",
        "signature_type": "Line"
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    {
        "signature_version": "v1",
        "target": {
            "file": "tensorflow/lite/core/subgraph.cc",
            "function": "Subgraph::Invoke"
        },
        "source": "https://github.com/tensorflow/tensorflow/commit/0b5662bc2be13a8c8f044d925d87fb6e56247cd8",
        "deprecated": false,
        "digest": {
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        },
        "source": "https://github.com/tensorflow/tensorflow/commit/0b5662bc2be13a8c8f044d925d87fb6e56247cd8",
        "deprecated": false,
        "digest": {
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            "threshold": 0.9
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        "id": "CVE-2020-15209-54e67227",
        "signature_type": "Line"
    },
    {
        "signature_version": "v1",
        "target": {
            "file": "tensorflow/lite/model_test.cc",
            "function": "TEST"
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        "source": "https://github.com/tensorflow/tensorflow/commit/0b5662bc2be13a8c8f044d925d87fb6e56247cd8",
        "deprecated": false,
        "digest": {
            "function_hash": "72409903535934688868846486751425969565",
            "length": 474.0
        },
        "id": "CVE-2020-15209-94238736",
        "signature_type": "Function"
    }
]