CVE-2020-8904 - Vulnerability Details - OpenCVE

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.

Published: 2020-08-12

Score: 6.4 Medium

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

No analysis available yet.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Google LLC

Asylo

affected

Version	Status	Constraints
`stable`	affected	< 0.6.0

Configuration 1 [-]

cpe:2.3:a:google:asylo:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No remediation available yet.

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2020-29743	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.

No CVSS v4.0

Attack Vector Local

Attack Complexity High

Privileges Required Low

Scope Changed

Confidentiality Impact None

Integrity Impact Low

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication Single

Confidentiality Impact None

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.00061.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://github.com/google/asylo/commit/e582f36ac49ee11a21d23ad6a30c333092e0a94e

History

No history.

Subscriptions

Google Asylo

MITRE

Status: PUBLISHED

Assigner: Google

Published: 2020-08-12T18:20:13.047Z

Updated: 2024-09-16T23:21:07.649Z

Reserved: 2020-02-12T00:00:00.000Z

Link: CVE-2020-8904

Vulnrichment

No data.

NVD

Status : Modified

Published: 2020-08-12T19:15:14.593

Modified: 2024-11-21T05:39:39.700

Link: CVE-2020-8904

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

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