CVE-2020-8904
CVSS V2 Medium 5.5
CVSS V3 Critical 9.6
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.
Overview
- CVE ID
- CVE-2020-8904
- Assigner
- cve-coordination@google.com
- Vulnerability Status
- Analyzed
- Published Version
- 2020-08-12T19:15:14
- Last Modified Date
- 2020-08-13T14:42:09
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:google:asylo:*:*:*:*:*:*:*:* | 1 | OR | 0.6.0 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:S/C:N/I:P/A:P
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- SINGLE
- Confidentiality Impact
- NONE
- Integrity Impact
- PARTIAL
- Availability Impact
- PARTIAL
- Base Score
- 5.5
- Severity
- MEDIUM
- Exploitability Score
- 8
- Impact Score
- 4.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- CHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- HIGH
- Base Score
- 9.6
- Base Severity
- CRITICAL
- Exploitability Score
- 3.1
- Impact Score
- 5.8
References
| Reference URL | Reference Tags |
|---|---|
| https://github.com/google/asylo/commit/e582f36ac49ee11a21d23ad6a30c333092e0a94e | Patch Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-8904 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8904 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 17:22:32 | Added to TrackCVE | |||
| 2022-12-04 20:53:40 | security@google.com | cve-coordination@google.com | CVE Assigner | updated |
| 2022-12-04 20:53:40 | 2020-08-12T19:15Z | 2020-08-12T19:15:14 | CVE Published Date | updated |
| 2022-12-04 20:53:40 | 2020-08-13T14:42:09 | CVE Modified Date | updated | |
| 2022-12-04 20:53:40 | Analyzed | Vulnerability Status | updated |