CVE-2020-8944

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Source

https://nvd.nist.gov/vuln/detail/CVE-2020-8944

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-8944.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2020-8944

Published

2020-12-15T15:15:13Z

Modified

2025-10-21T05:57:30.926092Z

Severity

5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N CVSS Calculator

Summary

[none]

Details

An arbitrary memory write vulnerability in Asylo versions up to 0.6.0 allows an untrusted attacker to make a call to ecall_restore using the attribute output which fails to check the range of a pointer. An attacker can use this pointer to write to arbitrary memory addresses including those within the secure enclave We recommend upgrading past commit 382da2b8b09cbf928668a2445efb778f76bd9c8a

References

https://github.com/google/asylo/commit/382da2b8b09cbf928668a2445efb778f76bd9c8a

Affected packages

Git / github.com/google/asylo

Affected ranges

Type: GIT
Repo: https://github.com/google/asylo
Events: Introduced

0 Unknown introduced commit / All previous commits are affected

Fixed

382da2b8b09cbf928668a2445efb778f76bd9c8a

Affected versions

buildenv-v0.*

buildenv-v0.2.0

buildenv-v0.2.1

buildenv-v0.2.2

buildenv-v0.3.0

buildenv-v0.3.1

buildenv-v0.3.2

buildenv-v0.3.3

buildenv-v0.3.4

buildenv-v0.4.0

buildenv-v0.4.1

buildenv-v0.5.0

buildenv-v0.5.1

buildenv-v0.5.2

buildenv-v0.5.3

buildenv-v0.6.0

v0.*

v0.2.0

v0.2.1

v0.2.2

v0.3.0

v0.3.1

v0.3.2

v0.3.3

v0.3.4

v0.3.4.1

v0.4.0

v0.4.1

v0.5.0

v0.5.1

v0.5.2

v0.5.3

v0.6.0

Database specific

vanir_signatures

[
    {
        "signature_type": "Function",
        "digest": {
            "function_hash": "292544041043139605901666954554142880038",
            "length": 677.0
        },
        "target": {
            "file": "asylo/platform/primitives/sgx/ecalls.cc",
            "function": "ecall_restore"
        },
        "signature_version": "v1",
        "id": "CVE-2020-8944-c4bb674b",
        "deprecated": false,
        "source": "https://github.com/google/asylo/commit/382da2b8b09cbf928668a2445efb778f76bd9c8a"
    },
    {
        "signature_type": "Line",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "43796465893664919794037350362535671537",
                "52328078366487823200871823319078263788",
                "304446741389288734818625786649112460004",
                "48016510177646431537891352573878220813"
            ]
        },
        "target": {
            "file": "asylo/platform/primitives/sgx/ecalls.cc"
        },
        "signature_version": "v1",
        "id": "CVE-2020-8944-ebc3eb05",
        "deprecated": false,
        "source": "https://github.com/google/asylo/commit/382da2b8b09cbf928668a2445efb778f76bd9c8a"
    }
]