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Vulnerability Details :

CVE-2020-8904

Summary
Assigner-Google
Assigner Org ID-14ed7db2-1595-443d-9d34-6215bf890778
Published At-12 Aug, 2020 | 18:20
Updated At-16 Sep, 2024 | 23:21
Rejected At-
Credits

Arbitrary trusted memory overwrite vulnerability in Asylo

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.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:Google
Assigner Org ID:14ed7db2-1595-443d-9d34-6215bf890778
Published At:12 Aug, 2020 | 18:20
Updated At:16 Sep, 2024 | 23:21
Rejected At:
▼CVE Numbering Authority (CNA)
Arbitrary trusted memory overwrite vulnerability in Asylo

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.

Affected Products
Vendor
Google LLCGoogle LLC
Product
Asylo
Versions
Affected
  • From stable before 0.6.0 (custom)
Problem Types
TypeCWE IDDescription
CWECWE-823CWE-823 Use of Out-of-range Pointer Offset
Type: CWE
CWE ID: CWE-823
Description: CWE-823 Use of Out-of-range Pointer Offset
Metrics
VersionBase scoreBase severityVector
3.16.4MEDIUM
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:H
Version: 3.1
Base score: 6.4
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Qinkun Bao, Zhaofeng Chen, Mingshen Sun, and Kang Li from Baidu Security
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/google/asylo/commit/e582f36ac49ee11a21d23ad6a30c333092e0a94e
x_refsource_CONFIRM
Hyperlink: https://github.com/google/asylo/commit/e582f36ac49ee11a21d23ad6a30c333092e0a94e
Resource:
x_refsource_CONFIRM
▼Authorized Data Publishers (ADP)
CVE Program Container
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/google/asylo/commit/e582f36ac49ee11a21d23ad6a30c333092e0a94e
x_refsource_CONFIRM
x_transferred
Hyperlink: https://github.com/google/asylo/commit/e582f36ac49ee11a21d23ad6a30c333092e0a94e
Resource:
x_refsource_CONFIRM
x_transferred
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:cve-coordination@google.com
Published At:12 Aug, 2020 | 19:15
Updated At:13 Aug, 2020 | 14:42

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Primary3.19.6CRITICAL
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H
Secondary3.16.4MEDIUM
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:H
Primary2.05.5MEDIUM
AV:N/AC:L/Au:S/C:N/I:P/A:P
Type: Primary
Version: 3.1
Base score: 9.6
Base severity: CRITICAL
Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H
Type: Secondary
Version: 3.1
Base score: 6.4
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:H
Type: Primary
Version: 2.0
Base score: 5.5
Base severity: MEDIUM
Vector:
AV:N/AC:L/Au:S/C:N/I:P/A:P
CPE Matches
Google LLC
google
>>asylo>>Versions before 0.6.0(exclusive)
cpe:2.3:a:google:asylo:*:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-119Primarynvd@nist.gov
CWE-823Secondarycve-coordination@google.com
CWE ID: CWE-119
Type: Primary
Source: nvd@nist.gov
CWE ID: CWE-823
Type: Secondary
Source: cve-coordination@google.com
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://github.com/google/asylo/commit/e582f36ac49ee11a21d23ad6a30c333092e0a94ecve-coordination@google.com
Patch
Third Party Advisory
Hyperlink: https://github.com/google/asylo/commit/e582f36ac49ee11a21d23ad6a30c333092e0a94e
Source: cve-coordination@google.com
Resource:
Patch
Third Party Advisory

Change History

0
Information is not available yet

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