VULNERABILITY INTELLIGENCE

CVE-2020-8904

CVSS score6.4 MEDIUM
EPSS probability0.23%
CISA KEVNot currently listed
Published2020-08-12
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:H

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.

Weakness classification

  • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
  • CWE-823: Use of Out-of-range Pointer Offset

Primary references