CVE-2020-8944

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Source
https://cve.org/CVERecord?id=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
2020-12-15T15:15:13.707Z
Modified
2026-07-08T19:45:38.783138Z
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

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
Last affected
299f804acbb95a612ab7c504d25ab908aa59ae93
Fixed
382da2b8b09cbf928668a2445efb778f76bd9c8a
Database specific 
{
    "cpe": "cpe:2.3:a:google:asylo:*:*:*:*:*:*:*:*",
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "0.6.0"
        }
    ]
}

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 
[
    {
        "digest": {
            "length": 677.0,
            "function_hash": "292544041043139605901666954554142880038"
        },
        "signature_version": "v1",
        "source": "https://github.com/google/asylo/commit/382da2b8b09cbf928668a2445efb778f76bd9c8a",
        "signature_type": "Function",
        "target": {
            "function": "ecall_restore",
            "file": "asylo/platform/primitives/sgx/ecalls.cc"
        },
        "id": "CVE-2020-8944-c4bb674b",
        "deprecated": false
    },
    {
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "43796465893664919794037350362535671537",
                "52328078366487823200871823319078263788",
                "304446741389288734818625786649112460004",
                "48016510177646431537891352573878220813"
            ]
        },
        "signature_version": "v1",
        "source": "https://github.com/google/asylo/commit/382da2b8b09cbf928668a2445efb778f76bd9c8a",
        "signature_type": "Line",
        "target": {
            "file": "asylo/platform/primitives/sgx/ecalls.cc"
        },
        "id": "CVE-2020-8944-ebc3eb05",
        "deprecated": false
    }
]
vanir_signatures_modified 
"2026-07-08T19:45:38Z"
source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-8944.json"