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TI-2020-07152 Aliases CVE-2020-8904GHSA-pc43-829f-g5gr

Arbitrary trusted memory overwrite vulnerability in Asylo

Priority MEDIUM 41CWE-823Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

An arbitrary memory overwrite vulnerability in the trusted memory of Asylo exists in versions prior to 0.6.0. As the ecall_restore function fails to validate the range of the output_len pointer, an attacker can manipulate the tmp_output_len value and write to an arbitrary location in the trusted (enclave) memory. We recommend updating Asylo to version 0.6.0 or later.

Why it matters now

EPSS 0.00232 14th percentileScored 2026-11-07
Fix Fixed Asylo (Google LLC): 0.6.0

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
GoogleAsylostable to before 0.6.00.6.0Patch availableCNA
  • Asylo VendorGoogle Affected stable to before 0.6.0 Fixed in 0.6.0 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:google:asylo:*:*:*:*:*:*:*:*before 0.6.0VulnerableGoogle
  • cpe:2.3:a:google:asylo:*:*:*:*:*:*:*:* Versions before 0.6.0 Vulnerable ·Google

Remediation

  • Fix · CNA Asylo (Google LLC) Fixed in 0.6.0

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Google Asylo 0.6.0

    2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2020-07153 Confidential Information Disclosure vulnerability in AsyloPriority LOW 28
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-8904
  2. 2026-10-03 Alias added: GHSA-pc43-829f-g5gr

References

Patch 1

  • TI-2021-05511 Enclave memory overwrite/overread vulnerability in Asylo UntrustedCacheMalloc::GetBuffer CVSS 3.1HIGH 7.8
  • TI-2021-05510 Arbitrary enclave memory overwrite vulnerability in Asylo TrustedPrimitives::UntrustedCall CVSS 3.1HIGH 7.8
  • TI-2021-05509 Arbitrary enclave memory overread vulnerability in Asylo TrustedPrimitives::UntrustedCall CVSS 3.1HIGH 7.8
  • TI-2020-07169 Memory corruption in Google Asylo CVSS 3.1HIGH 7.8
  • TI-2020-07153 Confidential Information Disclosure vulnerability in Asylo CVSS 3.1MEDIUM 6.5
  • TI-2021-05512 Memory overread secure enclave in Asylo 0.6.2 CVSS 3.1MEDIUM 5.5
See all 15 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences