CVE-2020-8904 - CVE House
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Status published Medium CVE-2020-8904

Arbitrary trusted memory overwrite vulnerability in Asylo

Vulnerability Description

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.

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, Zhaofeng Chen, Mingshen Sun, and Kang Li from Baidu Security

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Affected Vendor

Affected Software

Asylo
Vulnerable Versions:
stable

Timeline

Official Publish: August 12th, 2020
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:C/C:N/I:L/A:H

Weaknesses (CWE)

CWE-823

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.