CVE-2021-22550: Enclave memory overwrite/overread vulnerability in Asylo UntrustedCacheMalloc::GetBuffer
Published Jun 8, 2021
·Updated
An attacker can modify the pointers in enclave memory to overwrite arbitrary memory addresses within the secure enclave. It is recommended to update past 0.6.3 or git commit https://github.com/google/asylo/commit/a47ef55db2337d29de19c50cd29b0deb2871d31c
Affected Software
1 affected component
Google Asylo<0.6.3
Remediation
Event History
Jun 8, 2021
CVE Published
via MITRE·01:15 PM
Data Sourced
via MITRE·01:15 PM
DescriptionSeverityWeakness
Frequently Asked Questions
1
What is the severity of CVE-2021-22550?
CVE-2021-22550 has a high severity as it allows attackers to overwrite arbitrary memory addresses within the secure enclave.
2
How do I fix CVE-2021-22550?
To fix CVE-2021-22550, update to version 0.6.3 or later of Google Asylo.
3
What software is affected by CVE-2021-22550?
CVE-2021-22550 affects Google Asylo versions prior to 0.6.3.
4
What is the impact of CVE-2021-22550?
The impact of CVE-2021-22550 is that it allows unauthorized modification of enclave memory, potentially compromising secure operations.
5
Who can exploit CVE-2021-22550?
An attacker with access to the enclave can exploit CVE-2021-22550 to alter memory addresses.