CVE-2020-8938

Arbitrary enclave memory location write from untrusted environment

Description

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

Remediation

Solution:

  • Upgrade past commit a37fb6a0e7daf30134dbbf357c9a518a1026aa02

Category

5.3
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.04%
Third-Party Advisory github.com
Affected: Google LLC Asylo
Published at:
Updated at:

References

Link Tags
https://github.com/google/asylo/commit/bda9772e7872b0d2b9bee32930cf7a4983837b39 third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2020-8938?
CVE-2020-8938 has been scored as a medium severity vulnerability.
How to fix CVE-2020-8938?
To fix CVE-2020-8938: Upgrade past commit a37fb6a0e7daf30134dbbf357c9a518a1026aa02
Is CVE-2020-8938 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-8938 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-8938?
CVE-2020-8938 affects Google LLC Asylo.
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