CVE Vulnerability

CVE-2020-8904

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.

5.5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8 / Impact : 4.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

9.6 /10

CVSS v3.0 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.1 / Impact : 5.8

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References
Link Resource
https://github.com/google/asylo/commit/e582f36ac49ee11a21d23ad6a30c333092e0a94e Patch Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:google:asylo:*:*:*:*:*:*:*:*
Information

Published : 2020-08-12 07:15

Updated : 2020-08-13 02:42

NVD link : CVE-2020-8904

Mitre link : CVE-2020-8904

Products Affected

Asylo

Google

CWE
CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer