CVE-2021-22550 - CVE House
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Status published Medium CVE-2021-22550

Enclave memory overwrite/overread vulnerability in Asylo UntrustedCacheMalloc::GetBuffer

Vulnerability Description

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

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Qinkun Bao (Baidu Security)
  • Zhaofeng Chen (Baidu Security)
  • Mingshen Sun (Baidu Security)
  • Kang Li (Baidu Security)

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Affected Vendor

Affected Software

Asylo
Vulnerable Versions:
unspecified

Timeline

Official Publish: June 8th, 2021
Last Modified: September 16th, 2024
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L

Weaknesses (CWE)

CWE-823

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.