Enclave memory overwrite/overread vulnerability in Asylo UntrustedCacheMalloc::GetBuffer
CVE-2021-22550

6.5MEDIUM

Key Information:

Vendor

Google
Status
Asylo
Vendor
CVE Published:
8 June 2021

What is CVE-2021-22550?

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 Version(s)

Asylo <= 0.6.1

References

https://github.com/google/asylo/commit/a47ef55db2337d29de...
x_refsource_MISC

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Qinkun Bao (Baidu Security)
Zhaofeng Chen (Baidu Security)
Mingshen Sun (Baidu Security)
Kang Li (Baidu Security)
.