Unchecked buffer overrun in ecall_restore
CVE-2020-8944

5.3MEDIUM

Key Information:

Vendor
Google
Status
Asylo
Vendor
CVE Published:
15 December 2020

Summary

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

Affected Version(s)

Asylo <= 0.6.0

References

https://github.com/google/asylo/commit/382da2b8b09cbf9286...
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)
.