Read the docs
TI-2020-07171 Aliases CVE-2020-8937GHSA-wv62-pfmm-x787

Arbitrary enclave memory location write from untrusted environment

Priority LOW 23CWE-120Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
High
Impact type
—
Confidentiality · integrity · availability
High · Low · None
Fix status
No fix listed

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

Summary

An arbitrary memory overwrite vulnerability in Asylo versions up to 0.6.0 allows an attacker to make a host call to enc_untrusted_create_wait_queue that uses a pointer queue that relies on UntrustedLocalMemcpy, which fails to validate where the pointer is located. This allows an attacker to write memory values from within the enclave. We recommend upgrading past commit a37fb6a0e7daf30134dbbf357c9a518a1026aa02

Why it matters now

EPSS 0.0013 2nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
GoogleAsylo0.6.0 – 0.6.0—No fix listedCNA
  • Asylo VendorGoogle Affected 0.6.0 – 0.6.0 Fixed in — No fix listed CNA

CPE configurations NVD · 1

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

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-8937
  2. 2026-10-03 Alias added: GHSA-wv62-pfmm-x787

References

Patch 1

  • TI-2020-07152 Arbitrary trusted memory overwrite vulnerability in Asylo CVSS 3.1CRITICAL 9.6
  • 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
See all 15 →

Sources

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