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TI-2020-07177 Aliases CVE-2020-8943GHSA-jhpp-6c5p-c4vj

Unchecked buffer overrun in enc_untrusted_recvfrom

Priority LOW 24CWE-120Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-125 and the CVSS impact.

Summary

An arbitrary memory read vulnerability in Asylo versions up to 0.6.0 allows an untrusted attacker to make a call to enc_untrusted_recvfrom whose return size was not validated against the requested size. The parameter size is unchecked allowing the attacker to read memory locations outside of the intended buffer size including memory addresses within the secure enclave. We recommend upgrading past commit 6e158d558abd3c29a0208e30c97c9a8c5bd4230f

Why it matters now

EPSS 0.00132 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
GoogleAsyloup to 0.6.0—No fix listedCNA
  • Asylo VendorGoogle Affected up to 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-2020-8943
  2. 2026-10-03 Alias added: GHSA-jhpp-6c5p-c4vj

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