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CVE-2020-8904

MEDIUM
Published 2020-08-12T18:20:13.047510Z
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CVSS Score

V3.1
6.4
/10
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:H
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.001
probability
of exploitation in the wild

There is a 0.1% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.193
Higher than 19.3% of all CVEs

Attack Vector Metrics

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED

Impact Metrics

Confidentiality
NONE
Integrity
LOW
Availability
HIGH

Description

An arbitrary memory overwrite vulnerability in the trusted memory of Asylo exists in versions prior to 0.6.0. As the ecall_restore function fails to validate the range of the output_len pointer, an attacker can manipulate the tmp_output_len value and write to an arbitrary location in the trusted (enclave) memory. We recommend updating Asylo to version 0.6.0 or later.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

Google LLC

Asylo

Affected Versions:

stable

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed MODERATE

GHSA-pc43-829f-g5gr

Advisory Details

An arbitrary memory overwrite vulnerability in the trusted memory of Asylo exists in versions prior to 0.6.0. As the ecall_restore function fails to validate the range of the output_len pointer, an attacker can manipulate the tmp_output_len value and write to an arbitrary location in the trusted (enclave) memory. We recommend updating Asylo to version 0.6.0 or later.

CVSS Scoring

CVSS Score

5.0

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2020-8904
WEB https://github.com/google/asylo/commit/e582f36ac49ee11a21d23ad6a30c333092e0a94e

Advisory provided by GitHub Security Advisory Database. Published: May 24, 2022, Modified: May 24, 2022

References

https://github.com/google/asylo/commit/e582f36ac49ee11a21d23ad6a30c333092e0a94e
Published: 2020-08-12T18:20:13.047510Z
Last Modified: 2024-09-16T23:21:07.649Z
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