On November 12, 2019, Intel disclosed several potential security vulnerabilities. These potential security vulnerabilities may allow escalation of privilege, denial of service or information disclosure. Intel is releasing firmware and software updates to mitigate these potential vulnerabilities. KAYTUS products are affected by the following vulnerabilities:
Intel-SA-00240: CVE-2019-0151
Insufficient memory protection in Intel(R) TXT for certain Intel(R) Core Processors and Intel(R) Xeon(R) Processors may allow a privileged user to potentially enable escalation of privilege via local access.
Intel-SA-00270: CVE-2019-11135
TSX Asynchronous Abort condition on some CPUs utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access.
Intel-SA-00271: CVE-2019-11139
Improper conditions check in the voltage modulation interface for some Intel(R) Xeon(R) Scalable Processors may allow a privileged user to potentially enable denial of service via local access.
Intel-SA-00280: CVE-2019-11136, CVE-2019-11137
Potential security vulnerabilities(insufficient input validation、insufficient access control) in Intel firmware may allow escalation of privilege, denial of service and/or information disclosure.
The affected products and corresponding update versions are shown in the table below.
| CVE | V3.1 Vector(Base) | Base Score | V3.1 Vector(Temporal Score) | Temporal Score |
| CVE-2019-0151 | AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H | 6.7 | E:P/RL:O/RC:C | 6.0 |
| CVE-2019-11135 | AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N | 6.5 | E:P/RL:O/RC:C | 5.9 |
| CVE-2019-11139 | AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H | 6.0 | E:P/RL:O/RC:C | 5.4 |
| CVE-2019-11136 | AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H | 6.7 | E:P/RL:O/RC:C | 6.0 |
| CVE-2019-11137 | AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H | 8.2 | E:P/RL:O/RC:C | 7.4 |
| Product | BIOS Update version |
| NF5180M5 | NF5180M5_BIOS_4.1.8_Standard_20200117 |
| NS5162M5 | NS5162M5_BIOS_4.1.9_Standard_20191214 |
| NF5266M5 | NF5266M5_BIOS_3.1.4_Standard_20191222 |
| NF5270M5 | NF5270M5_BIOS_4.1.3_standard_20191122 |
| NF5468M5 | NF5468M5_BIOS_4.1.13_Standard_20200121 |
| NF5280M5 | NF5280M5_BIOS_4.1.13_Standard_20200116 |
| SN5161M5 | SN5161M5_BIOS_4.1.04_Standard_20200228 |
| NF5288M5 | NF5288M5_BIOS_4.1.06_Standard_20191127 |
| NF5466M5 | NF5466M5_BIOS_4.1.13_Standard_20200116 |
| NF8380M5 | NF8380M5_BIOS_4.1.4_Standard_20200117 |
| NF5488M5 NF5888M5 |
NF5488M5_BIOS_4.1. 0_Standard_20200103 |
| NX5460M5 | NX5460M5_BIOS_4.1.05_Standard_20200218 |
| NF8480M5 | NF8480M5_BIOS_4.1.11_Standard_20191226 |
| TS860M5 | TS860M5_BIOS_4.1.11_Standard_20200303 |
| NS5488M5 NS5484M5 NS5482M5 |
Sentosa_BIOS_4.1.08_standard_20191213 |
| NF8260M5 | NF8260M5_BIOS_4.1.12_Standard_20200115 |
KAYTUS provides method to update CPU Microcode of its various products as mentioned in the table above.Download your product’s corresponding BIOS image and perform the BIOS upgrade.
Please visit the Support Center site for updates on the applicable products.
20200310-V1.0-Initial Release
20200317-V1.1-Updated The Fix Version
20200403-V1.2-Updated The Fix Version
INTEL-SA-00240：https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00240.html
INTEL-SA-00241：https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00241.html
INTEL-SA-00270：https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00270.html
INTEL-SA-00271：https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00271.html
INTEL-SA-00280：https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00280.html
For issues about implementing the recommendations of this Security Bulletin, contact normal KAYTUS Services Support channel. For other issues about the content of this Security Bulletin, send e-mail to sec@kaytus.com.
To report a potential security vulnerability for KAYTUS product: Reporting a Security Vulnerability
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