Vulnerability Details
This section summarizes the potential vulnerabilities. Descriptions use CWE™ and risk assessments follow the CVSS V3 standard.
CVE-2017-6290
NVIDIA Tegra TrustZone kernel contains a potential vulnerability which could enable a local malicious application to execute arbitrary code within the context of a privileged process.
CVSS V3 Base Score: 7.8 CVSS V3 Vector: AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2017-6294
NVIDIA TLK TrustZone OS contains a potential vulnerability in the logging driver where the software writes data after the end or before the beginning of the intended buffer, which may lead to arbitrary code execution, denial of service, or escalation of privileges.
CVSS V3 Base Score: 8.1 CVSS V3 Vector: AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CVE-2017-6292
NVIDIA TLK TrustZone OS contains a potential vulnerability in the TA-to-TA communication handler where the software performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value, which may lead to code execution or denial of service.
CVSS V3 Base Score: 5.7 CVSS V3 Vector: AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
SHIELD TV includes the latest AndroidTM security updates, and has applied patches up to the Android Security Patch level 2018-05-05. For more information about what is included in Android security patch levels, refer to the Android Security Bulletins.
NVIDIA’s risk assessment is based on an average of risk across a diverse set of installed systems and may not represent the true risk of your local installation. NVIDIA recommends consulting a security or IT professional to evaluate the risk of your specific configuration. NVIDIA doesn’t know of any exploits to these issues at this time.
Affected Software
The following table lists supported software and their affected versions. All SHIELD TV versions prior to the versions listed in the Affected Versions column are also impacted by the issues in this bulletin.
| List of CVEs | Software Product | Operating System | Affected Versions |
|---|---|---|---|
| CVE-2017-6290 CVE-2017-6292 CVE-2017-6294 | SHIELD TV | Android | SHIELD Experience 6.3 and earlier |
Software Security Updates
The following table lists the software version containing security updates for the issues described in this bulletin. If you are using an unsupported software version or an earlier SHIELD TV version that is no longer supported, upgrade to the updated supported version listed.
Support may have expired for certain NVIDIA SHIELD TV products. Contact NVIDIA Support with any questions.
Updates for SHIELD TV are available from Settings>About>System update.
| SHIELD TV Product Series | Android Security Patch Level | Operating System | Updated Version |
|---|---|---|---|
| All | 2018-05-05 | Android | SHIELD Experience Upgrade 7.0 |
Mitigations
None.
Acknowledgements
None.
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Revision History
| Revision | Date | Description |
|---|---|---|
| 2.1 | September 14, 2018 | Updated the descriptions of CVE-2017-6294 and CVE-2017-6292 to refer to "potential" vulnerabilities |
| 2.0 | September 13, 2018 | Updated the description and vector for CVE-2017-6290, and added Android security information |
| 1.0 | June 28, 2018 | Initial release |
Support
If you have any questions about this security bulletin, contact NVIDIA Support.
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