CVE-2020-8940 MEDIUM

CVE-2020-8940: Unchecked buffer overrun in enc_untrusted_recvmsg

Vendor Google Llc
Product Asylo
Weakness CWE-120
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 read vulnerability in Asylo versions up to 0.6.0 allows an untrusted attacker to make a call to enc_untrusted_recvmsg using an attacker controlled result parameter. The parameter size is unchecked allowing the attacker to read memory locations outside of the intended buffer size including memory addresses within the secure enclave. We recommend upgrading or past commit fa6485c5d16a7355eab047d4a44345a73bc9131e

Key dates

02Disclosure timeline

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