CVE-2020-8904CWE-823

Arbitrary trusted memory overwrite vulnerability in Asylo

Medium · published August 12, 2020

CVSS v3.1
6.4
EPSS
0%
Percentile
13.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.4 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:H
CVSS v4.0
Not supplied
EPSS
0.00232 · 13.3th percentile
Weakness
CWE-823 · Use of Out-of-range Pointer Offset
Published
2020-08-12T18:20Z
EPSS history
Timeline
  • 12 AUG 18:20Z
    Arbitrary trusted memory overwrite vulnerability in Asylo
    cvelistv5