High
Security advisory
An attacker can modify the pointers in enclave memory to overwrite arbitrary memory addresses within the secure enclave. It is recommended to update past 0.6.3 or git commit https://github.com/google/asylo/commit/a47ef55db2337d29de19c50cd29b0deb2871d31c
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2021-22550
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 12:43 UTC · Revision 1
Source evidence
An attacker can modify the pointers in enclave memory to overwrite arbitrary memory addresses within the secure enclave. It is recommended to update past 0.6.3 or git commit https://github.com/google/asylo/commit/a47ef55db2337d29de19c50cd29b0deb2871d31c
osv:CVE-2021-22550
Complete source record
{
"id": "458a0e5526bb1579c832b36d4c7df74c3885a9fd99dd8d3d7e325ecbe197ddcc",
"url": "https://osv.dev/vulnerability/CVE-2021-22550",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2021-22550",
"summary": "An attacker can modify the pointers in enclave memory to overwrite arbitrary memory addresses within the secure enclave. It is recommended to update past 0.6.3 or git commit https://github.com/google/asylo/commit/a47ef55db2337d29de19c50cd29b0deb2871d31c",
"evidence": "osv:CVE-2021-22550",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2021-22550",
"aliases": [
"CVE-2021-22550"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/google/asylo",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "49ea8b3ec7a31280bbbc2864375b1d19506d6d54"
},
{
"fixed": "a47ef55db2337d29de19c50cd29b0deb2871d31c"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:google:asylo:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "0.6.3"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "a47ef55db2337d29de19c50cd29b0deb2871d31c"
}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
"versions": [
"v0.6.2",
"buildenv-v0.6.2",
"v0.6.1",
"buildenv-v0.6.1",
"v0.6.0",
"buildenv-v0.6.0",
"v0.5.3",
"buildenv-v0.5.3",
"v0.5.2",
"buildenv-v0.5.2",
"v0.5.1",
"buildenv-v0.5.1",
"v0.5.0",
"buildenv-v0.5.0",
"v0.4.1",
"buildenv-v0.4.1",
"v0.4.0",
"buildenv-v0.4.0",
"v0.3.4.1",
"v0.3.4",
"buildenv-v0.3.4",
"v0.3.3",
"buildenv-v0.3.3",
"v0.3.2",
"buildenv-v0.3.2",
"v0.3.1",
"buildenv-v0.3.1",
"v0.3.0",
"buildenv-v0.3.0",
"v0.2.2",
"buildenv-v0.2.2",
"v0.2.1",
"buildenv-v0.2.1",
"v0.2.0",
"buildenv-v0.2.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-22550.json",
"vanir_signatures": [
{
"id": "CVE-2021-22550-24913b25",
"digest": {
"threshold": 0.9,
"line_hashes": [
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},
"source": "https://github.com/google/asylo/commit/49ea8b3ec7a31280bbbc2864375b1d19506d6d54",
"target": {
"file": "asylo/util/statusor.h"
},
"deprecated": false,
"signature_type": "Line",
"signature_version": "v1"
},
{
"id": "CVE-2021-22550-a190eb25",
"digest": {
"length": 608,
"function_hash": "324340882865174162518142847362939396353"
},
"source": "https://github.com/google/asylo/commit/a47ef55db2337d29de19c50cd29b0deb2871d31c",
"target": {
"file": "asylo/platform/primitives/sgx/untrusted_cache_malloc.cc",
"function": "UntrustedCacheMalloc::GetBuffer"
},
"deprecated": false,
"signature_type": "Function",
"signature_version": "v1"
},
{
"id": "CVE-2021-22550-d59b588a",
"digest": {
"threshold": 0.9,
"line_hashes": [
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},
"source": "https://github.com/google/asylo/commit/a47ef55db2337d29de19c50cd29b0deb2871d31c",
"target": {
"file": "asylo/platform/primitives/sgx/untrusted_cache_malloc.cc"
},
"deprecated": false,
"signature_type": "Line",
"signature_version": "v1"
}
],
"vanir_signatures_modified": "2026-10-20T14:23:28Z"
}
}
],
"modified": "2026-10-20T14:23:28.091492290Z",
"provider": "osv",
"references": [
"https://github.com/google/asylo/commit/a47ef55db2337d29de19c50cd29b0deb2871d31c"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2021-22550",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 388869,
"published_at": "2021-06-08T14:15:07.873+00:00"
}