CVE-2020-8935

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Source
https://cve.org/CVERecord?id=CVE-2020-8935
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-8935.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2020-8935
Published
2020-12-15T15:15:12.987Z
Modified
2026-07-08T20:29:53.367853Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

An arbitrary memory overwrite vulnerability in Asylo versions up to 0.6.0 allow an attacker to make an Ecall_restore function call to reallocate untrusted code and overwrite sections of the Enclave memory address. We recommend updating your library.

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
ed0926bff0e423cd122a18b3d2fc772817f66825
Database specific 
{
    "cpe": "cpe:2.3:a:google:asylo:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "0.6.0"
        }
    ],
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ]
}

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 
[
    {
        "source": "https://github.com/google/asylo/commit/ed0926bff0e423cd122a18b3d2fc772817f66825",
        "signature_version": "v1",
        "signature_type": "Line",
        "digest": {
            "line_hashes": [
                "330936869301037059737793362845294373946",
                "154509550783807851087753276324588402993",
                "112634774847455835941553074213750942069",
                "42612531078368980209211864332224132916"
            ],
            "threshold": 0.9
        },
        "deprecated": false,
        "id": "CVE-2020-8935-bc57d05a",
        "target": {
            "file": "asylo/platform/host_call/trusted/host_calls.cc"
        }
    },
    {
        "source": "https://github.com/google/asylo/commit/ed0926bff0e423cd122a18b3d2fc772817f66825",
        "signature_version": "v1",
        "signature_type": "Function",
        "digest": {
            "function_hash": "232489973061455759931858895176426134338",
            "length": 528.0
        },
        "deprecated": false,
        "id": "CVE-2020-8935-cd60b6c4",
        "target": {
            "function": "enc_untrusted_realloc",
            "file": "asylo/platform/host_call/trusted/host_calls.cc"
        }
    }
]
vanir_signatures_modified 
"2026-07-08T20:29:53Z"
source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-8935.json"