USN-4628-2
intel-microcode regression
USN-4628-1 provided updated Intel Processor Microcode. Unfortunately, that update prevented certain processors in the Intel Tiger Lake family from booting successfully. This update reverts the microcode update for the Tiger Lake processor family.
Please note that the 'dis_ucode_ldr' kernel command line option can be added in the boot menu to disable microcode loading for system recovery.
We apologize for the inconvenience.
Original advisory details:
Moritz Lipp, Michael Schwarz, Andreas Kogler, David Oswald, Catherine Easdon, Claudio Canella, and Daniel Gruss discovered that the Intel Running Average Power Limit (RAPL) feature of some Intel processors allowed a side- channel attack based on power consumption measurements. A local attacker could possibly use this to expose sensitive information. (CVE-2020-8695)
Ezra Caltum, Joseph Nuzman, Nir Shildan and Ofir Joseff discovered that some Intel(R) Processors did not properly remove sensitive information before storage or transfer in some situations. A local attacker could possibly use this to expose sensitive information. (CVE-2020-8696)
Ezra Caltum, Joseph Nuzman, Nir Shildan and Ofir Joseff discovered that some Intel(R) Processors did not properly isolate shared resources in some situations. A local attacker could possibly use this to expose sensitive information. (CVE-2020-8698)
What each source reports
OSV No score
intel-microcode regression
USN-4628-1 provided updated Intel Processor Microcode. Unfortunately, that update prevented certain processors in the Intel Tiger Lake family from booting successfully. This update reverts the microcode update for the Tiger Lake processor family.
Please note that the 'dis_ucode_ldr' kernel command line option can be added in the boot menu to disable microcode loading for system recovery.
We apologize for the inconvenience.
Original advisory details:
Moritz Lipp, Michael Schwarz, Andreas Kogler, David Oswald, Catherine Easdon, Claudio Canella, and Daniel Gruss discovered that the Intel Running Average Power Limit (RAPL) feature of some Intel processors allowed a side- channel attack based on power consumption measurements. A local attacker could possibly use this to expose sensitive information. (CVE-2020-8695)
Ezra Caltum, Joseph Nuzman, Nir Shildan and Ofir Joseff discovered that some Intel(R) Processors did not properly remove sensitive information before storage or transfer in some situations. A local attacker could possibly use this to expose sensitive information. (CVE-2020-8696)
Ezra Caltum, Joseph Nuzman, Nir Shildan and Ofir Joseff discovered that some Intel(R) Processors did not properly isolate shared resources in some situations. A local attacker could possibly use this to expose sensitive information. (CVE-2020-8698)
- Record
USN-4628-2- Updated
- 2026-11-02
Affected packages
| Package | Affected | Fixed |
|---|---|---|
intel-microcodeUbuntu:Pro:14.04:LTS |
before 3.20201110.0ubuntu0.14.04.2, plus listed versions 1.20130906.1ubuntu21.20130906.1ubuntu32.20140122.12.20140430.1ubuntu12.20140624-t-1ubuntu2 Show 15 moreShow less3.20180108.0~ubuntu14.04.23.20180108.0+really20170707ubuntu14.04.13.20180312.0~ubuntu14.04.13.20180425.1~ubuntu0.14.04.13.20180425.1~ubuntu0.14.04.23.20180807a.0ubuntu0.14.04.13.20190514.0ubuntu0.14.04.13.20190514.0ubuntu0.14.04.23.20190618.0ubuntu0.14.04.13.20191112-0ubuntu0.14.04.23.20191115.1ubuntu0.14.04.13.20191115.1ubuntu0.14.04.23.20200609.0ubuntu0.14.04.03.20200609.0ubuntu0.14.04.13.20201110.0ubuntu0.14.04.1 |
3.20201110.0ubuntu0.14.04.2 |
intel-microcodeUbuntu:16.04:LTS |
before 3.20201110.0ubuntu0.16.04.2, plus listed versions 3.20150121.13.20151106.13.20170707.1~ubuntu16.04.03.20180108.0~ubuntu16.04.23.20180108.0+really20170707ubuntu16.04.1 Show 13 moreShow less3.20180312.0~ubuntu16.04.13.20180425.1~ubuntu0.16.04.13.20180425.1~ubuntu0.16.04.23.20180807a.0ubuntu0.16.04.13.20190514.0ubuntu0.16.04.13.20190514.0ubuntu0.16.04.23.20190618.0ubuntu0.16.04.13.20191112-0ubuntu0.16.04.23.20191115.1ubuntu0.16.04.13.20191115.1ubuntu0.16.04.23.20200609.0ubuntu0.16.04.03.20200609.0ubuntu0.16.04.13.20201110.0ubuntu0.16.04.1 |
3.20201110.0ubuntu0.16.04.2 |
intel-microcodeUbuntu:18.04:LTS |
before 3.20201110.0ubuntu0.18.04.2, plus listed versions 3.20170707.13.20171117.13.20180108.13.20180108.1+really20171117.13.20180312.0~ubuntu18.04.1 Show 12 moreShow less3.20180425.1~ubuntu0.18.04.13.20180425.1~ubuntu0.18.04.23.20180807a.0ubuntu0.18.04.13.20190514.0ubuntu0.18.04.23.20190514.0ubuntu0.18.04.33.20190618.0ubuntu0.18.04.13.20191112-0ubuntu0.18.04.23.20191115.1ubuntu0.18.04.13.20191115.1ubuntu0.18.04.23.20200609.0ubuntu0.18.04.03.20200609.0ubuntu0.18.04.13.20201110.0ubuntu0.18.04.1 |
3.20201110.0ubuntu0.18.04.2 |
intel-microcodeUbuntu:20.04:LTS |
before 3.20201110.0ubuntu0.20.04.2, plus listed versions 3.20190918.1ubuntu13.20191115.1ubuntu13.20191115.1ubuntu23.20191115.1ubuntu33.20200609.0ubuntu0.20.04.03.20200609.0ubuntu0.20.04.13.20200609.0ubuntu0.20.04.23.20201110.0ubuntu0.20.04.1 |
3.20201110.0ubuntu0.20.04.2 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
USN-4628-2 is a vulnerability with no CVSS score yet in intel-microcode, published November 12, 2020. No source lists public exploit code. Fixed in intel-microcode 3.20201110.0ubuntu0.14.04.2.