CVE-2020-8944 MEDIUM

CVE-2020-8944: Unchecked buffer overrun in ecall_restore

Vendor Google Llc
Product Asylo
Weakness CWE-120
Published December 15, 2020
Last update August 4, 2024
View on NVD All CVEs

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 write vulnerability in Asylo versions up to 0.6.0 allows an untrusted attacker to make a call to ecall_restore using the attribute output which fails to check the range of a pointer. An attacker can use this pointer to write to arbitrary memory addresses including those within the secure enclave We recommend upgrading past commit 382da2b8b09cbf928668a2445efb778f76bd9c8a

Key dates

02Disclosure timeline

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