CVE-2020-8937CWE-120

Arbitrary enclave memory location write from untrusted environment

Medium · published December 15, 2020

CVSS v3.1
5.3
EPSS
0%
Percentile
2.4
In the wild
Unconfirmed
What it is

An arbitrary memory overwrite vulnerability in Asylo versions up to 0.6.0 allows an attacker to make a host call to enc_untrusted_create_wait_queue that uses a pointer queue that relies on UntrustedLocalMemcpy, which fails to validate where the pointer is located. This allows an attacker to write memory values from within the enclave. We recommend upgrading past commit a37fb6a0e7daf30134dbbf357c9a518a1026aa02

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00130 · 2.4th percentile
Weakness
CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Published
2020-12-15T14:55Z
EPSS history
Timeline
  • 15 DEC 14:55Z
    Arbitrary enclave memory location write from untrusted environment
    cvelistv5