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

5.3MEDIUM

Key Information:

Vendor
Google
Status
Asylo
Vendor
CVE Published:
15 December 2020

Summary

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

Affected Version(s)

Asylo <= 0.6.0

References

https://github.com/google/asylo/commit/bda9772e7872b0d2b9...
x_refsource_CONFIRM

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
High
Integrity:
Low
Availability:
High
Attack Vector:
Local
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Collectors

NVD DatabaseMitre Database

Credit

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