CVE-2020-8938 MEDIUM

CVE-2020-8938: Arbitrary enclave memory location write from untrusted environment

Vendor Google Llc
Product Asylo
Published December 15, 2020
Last update August 4, 2024

CVSS base score

5.3/10
Attack vector Local
Attack complexity High
Privileges required Low
User interaction None
Confidentiality High
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

An arbitrary memory overwrite vulnerability in Asylo versions up to 0.6.0 allows an attacker to make a host call to FromkLinuxSockAddr with attacker controlled content and size of klinux_addr which allows an attacker to write memory values from within the enclave. We recommend upgrading past commit a37fb6a0e7daf30134dbbf357c9a518a1026aa02

Key dates

02Disclosure timeline

December 15, 2020 CVE published
August 4, 2024 Record updated