CVE-2020-8905 LOW

CVE-2020-8905: Confidential Information Disclosure vulnerability in Asylo

Vendor Google Llc
Product Asylo
Weakness CWE-120
Published August 12, 2020
Last update September 17, 2024

CVSS base score

2.8/10
Attack vector Local
Attack complexity High
Privileges required Low
User interaction None
Confidentiality Low
Integrity None

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N

What the vulnerability does

01Description

A buffer length validation vulnerability in Asylo versions prior to 0.6.0 allows an attacker to read data they should not have access to. The 'enc_untrusted_recvfrom' function generates a return value which is deserialized by 'MessageReader', and copied into three different 'extents'. The length of the third 'extents' is controlled by the outside world, and not verified on copy, allowing the attacker to force Asylo to copy trusted memory data into an untrusted buffer of significantly small length.. We recommend updating Asylo to version 0.6.0 or later.

Key dates

02Disclosure timeline

August 12, 2020 CVE published
September 17, 2024 Record updated