Description
Improper isolation of shared resources in some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | Intel(R) Processors | See references | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | intel-microcode | 3.20201110.1 | — |
| Debian 13 | intel-microcode | 3.20201110.1 | — |
| Debian 12 | intel-microcode | 3.20201110.1 | — |
| Debian 9 | intel-microcode | 3.20201118.1~deb9u1 | DLA-2546-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | intel-microcode | 3.20210216.0ubuntu0.20.04.1 | USN-4628-3, USN-4628-1 |
| Ubuntu 18.04 LTS | intel-microcode | 3.20210216.0ubuntu0.18.04.1 | USN-4628-3, USN-4628-1 |
| Ubuntu 16.04 LTS | intel-microcode | 3.20201110.0ubuntu0.16.04.1 | USN-4628-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 14.04 LTS | intel-microcode | 3.20201110.0ubuntu0.14.04.1 | USN-4628-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | microcode_ctl | 4:20200609-2.20201027.1.el8_3 | RHSA-2021:3027, RHSA-2020:5085 |
| RHEL 7 | microcode_ctl | 2:2.1-73.2.el7_9 | RHSA-2021:3028, RHSA-2020:5083 |
| RHEL 6 | microcode_ctl | 2:1.17-33.31.el6_10 | RHSA-2020:5084 |
Show 17 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8.2 EUS | microcode_ctl | 4:20191115-4.20201112.1.el8_2 | RHSA-2021:3364, RHSA-2020:5185 |
| RHEL 8.1 EUS | microcode_ctl | 4:20190618-1.20201112.1.el8_1 | RHSA-2021:3176, RHSA-2020:5369 |
| RHEL 8.0 E4S | microcode_ctl | 4:20180807a-2.20201112.1.el8_0 | RHSA-2020:5186 |
| RHEL 7.7 EUS | microcode_ctl | 2:2.1-53.13.el7_7 | RHSA-2021:3029, RHSA-2020:5190 |
| RHEL 7.6 TUS | microcode_ctl | 2:2.1-47.23.el7_6 | RHSA-2021:3317 |
| RHEL 7.6 EUS | microcode_ctl | 2:2.1-47.18.el7_6 | RHSA-2020:5181 |
| RHEL 7.6 E4S | microcode_ctl | 2:2.1-47.23.el7_6 | RHSA-2021:3317 |
| RHEL 7.6 AUS | microcode_ctl | 2:2.1-47.23.el7_6 | RHSA-2021:3317 |
| RHEL 7.4 TUS | microcode_ctl | 2:2.1-22.36.el7_4 | RHSA-2021:3255, RHSA-2020:5182 |
| RHEL 7.4 E4S | microcode_ctl | 2:2.1-22.36.el7_4 | RHSA-2021:3255, RHSA-2020:5182 |
| RHEL 7.4 AUS | microcode_ctl | 2:2.1-22.36.el7_4 | RHSA-2021:3255, RHSA-2020:5182 |
| RHEL 7.3 TUS | microcode_ctl | 2:2.1-16.37.el7_3 | RHSA-2020:5183 |
| RHEL 7.3 E4S | microcode_ctl | 2:2.1-16.37.el7_3 | RHSA-2020:5183 |
| RHEL 7.3 AUS | microcode_ctl | 2:2.1-16.37.el7_3 | RHSA-2021:3322, RHSA-2020:5183 |
| RHEL 7.2 AUS | microcode_ctl | 2:2.1-12.34.el7_2 | RHSA-2021:3323, RHSA-2020:5188 |
| RHEL 6.6 AUS | microcode_ctl | 2:1.17-19.32.el6_6 | RHSA-2020:5184 |
| RHEL 6.5 AUS | microcode_ctl | 2:1.17-17.34.el6_5 | RHSA-2020:5189 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | microcode_ctl | 4:20210216-1.20210608.1.el8_4 | RLSA-2021:3027 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP2 | ucode-intel | 20201027-2.7.1 | SUSE-SU-2020:3373-1, SUSE-SU-2020:3271-1 |
| SLES 15 SP1 | ucode-intel | 20201027-3.33.1 | SUSE-SU-2020:3372-1, SUSE-SU-2020:3276-1 |
| SLES 12 SP5 | ucode-intel | 20201027-3.20.1 | SUSE-SU-2020:3457-1, SUSE-SU-2020:3274-1 |
| SLES 12 SP4 | ucode-intel | 20201027-13.76.1 | SUSE-SU-2020:3514-1, SUSE-SU-2020:3279-1 |
| SLES 12 SP3 | ucode-intel | 20201027-13.76.1 | SUSE-SU-2020:3514-1, SUSE-SU-2020:3279-1 |
Show 16 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP2 | ucode-intel | 20201027-13.76.1 | SUSE-SU-2020:3514-1, SUSE-SU-2020:3279-1 |
| SLES 11 SP4 | microcode_ctl | 1.17-102.83.59.1 | SUSE-SU-2020:14546-1, SUSE-SU-2020:14540-1 |
| SLES for SAP 15 | ucode-intel | 20201027-3.51.1 | SUSE-SU-2020:3374-1, SUSE-SU-2020:3275-1 |
| SLES for SAP 12 SP5 | ucode-intel | 20201027-3.20.1 | SUSE-SU-2020:3457-1, SUSE-SU-2020:3274-1 |
| SLES for SAP 12 SP4 | ucode-intel | 20201027-13.76.1 | SUSE-SU-2020:3514-1, SUSE-SU-2020:3279-1 |
| SLES for SAP 12 SP3 | ucode-intel | 20201027-13.76.1 | SUSE-SU-2020:3514-1, SUSE-SU-2020:3279-1 |
| SLES for SAP 12 SP2 | ucode-intel | 20201027-13.76.1 | SUSE-SU-2020:3514-1, SUSE-SU-2020:3279-1 |
| SLE HPC 15 | ucode-intel | 20201027-3.51.1 | SUSE-SU-2020:3374-1, SUSE-SU-2020:3275-1 |
| SUSE OpenStack Cloud Crowbar 9 | ucode-intel | 20201027-13.76.1 | SUSE-SU-2020:3514-1, SUSE-SU-2020:3279-1 |
| SUSE OpenStack Cloud Crowbar 8 | ucode-intel | 20201027-13.76.1 | SUSE-SU-2020:3514-1, SUSE-SU-2020:3279-1 |
| SUSE OpenStack Cloud 9 | ucode-intel | 20201027-13.76.1 | SUSE-SU-2020:3514-1, SUSE-SU-2020:3279-1 |
| SUSE OpenStack Cloud 8 | ucode-intel | 20201027-13.76.1 | SUSE-SU-2020:3514-1, SUSE-SU-2020:3279-1 |
| SUSE OpenStack Cloud 7 | ucode-intel | 20201027-13.76.1 | SUSE-SU-2020:3514-1, SUSE-SU-2020:3279-1 |
| SUSE Linux Enterprise Point of Sale 11 SP3 | microcode_ctl | 1.17-102.83.59.1 | SUSE-SU-2020:14546-1, SUSE-SU-2020:14540-1 |
| SUSE HPE Helion OpenStack 8 | ucode-intel | 20201027-13.76.1 | SUSE-SU-2020:3514-1, SUSE-SU-2020:3279-1 |
| SUSE Enterprise Storage 5 | ucode-intel | 20201027-13.76.1 | SUSE-SU-2020:3514-1, SUSE-SU-2020:3279-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | ucode-intel | 20210608-1.2 | openSUSE-SU-2024:11478-1 |
| openSUSE Leap 15.2 | ucode-intel | 20201118-lp152.2.8.1 | openSUSE-SU-2020:2075-1 |
| openSUSE Leap 15.1 | ucode-intel | 20201118-lp151.2.33.1 | openSUSE-SU-2020:2098-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | intel-ucode | 20201110-r0 | — |
| Alpine v3.23 | intel-ucode | 20201110-r0 | — |
| Alpine v3.22 | intel-ucode | 20201110-r0 | — |
| Alpine v3.21 | intel-ucode | 20201110-r0 | — |
| Alpine v3.20 | intel-ucode | 20201110-r0 | — |
Show 8 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | intel-ucode | 20201110-r0 | — |
| Alpine v3.18 | intel-ucode | 20201110-r0 | — |
| Alpine v3.17 | intel-ucode | 20201110-r0 | — |
| Alpine v3.16 | intel-ucode | 20201110-r0 | — |
| Alpine v3.15 | intel-ucode | 20201110-r0 | — |
| Alpine v3.14 | intel-ucode | 20201110-r0 | — |
| Alpine v3.13 | intel-ucode | 20201110-r0 | — |
| Alpine v3.12 | intel-ucode | 20201110-r0 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | microcode_ctl | 4:20200609-2.20201027.1.0.1.el8_3 | ELSA-2021-3027, ELSA-2020-5085 |
| Oracle Linux 7 | microcode_ctl | 2:2.1-73.2.0.1.el7_9 | ELSA-2021-3028, ELSA-2020-5083 |
Advisories 49
- RHSA-2021:3364 Red Hat Security Advisory: microcode_ctl security, bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 9, 2026
- RHSA-2021:3322 Red Hat Security Advisory: microcode_ctl security, bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 9, 2026
- RHSA-2021:3323 Red Hat Security Advisory: microcode_ctl security, bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 9, 2026
- RHSA-2021:3317 Red Hat Security Advisory: microcode_ctl security, bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 9, 2026
- RHSA-2021:3255 Red Hat Security Advisory: microcode_ctl security, bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 9, 2026
- RHSA-2021:3176 Red Hat Security Advisory: microcode_ctl security, bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 9, 2026
- RHSA-2021:3028 Red Hat Security Advisory: microcode_ctl security, bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 9, 2026
- RHSA-2021:3029 Red Hat Security Advisory: microcode_ctl security, bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 9, 2026
- RHSA-2021:3027 Red Hat Security Advisory: microcode_ctl security, bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 9, 2026
- RHSA-2020:5190 Red Hat Security Advisory: microcode_ctl security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2020:5369 Red Hat Security Advisory: microcode_ctl security, bug fix and enhancement update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2020:5188 Red Hat Security Advisory: microcode_ctl security, bug fix and enhancement update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2020:5189 Red Hat Security Advisory: microcode_ctl security, bug fix and enhancement update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2020:5185 Red Hat Security Advisory: microcode_ctl security, bug fix and enhancement update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2020:5186 Red Hat Security Advisory: microcode_ctl security, bug fix and enhancement update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2020:5183 Red Hat Security Advisory: microcode_ctl security, bug fix and enhancement update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2020:5184 Red Hat Security Advisory: microcode_ctl security, bug fix and enhancement update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2020:5182 Red Hat Security Advisory: microcode_ctl security, bug fix and enhancement update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2020:5181 Red Hat Security Advisory: microcode_ctl security, bug fix and enhancement update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2020:5084 Red Hat Security Advisory: microcode_ctl security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2020:5085 Red Hat Security Advisory: microcode_ctl security, bug fix and enhancement update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2020:5083 Red Hat Security Advisory: microcode_ctl security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- USN-4628-1 intel-microcode vulnerabilities Ubuntu Security Notices (USN) · Jun 29, 2026
- DLA-2546-1 intel-microcode - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-4628-3 intel-microcode vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- RLSA-2021:3027 Important: microcode_ctl security, bug fix and enhancement update Rocky Linux Security Advisories · Feb 4, 2026
- SUSE-SU-2020:3372-1 Security update for ucode-intel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:3374-1 Security update for ucode-intel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:3274-1 Security update for ucode-intel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:3275-1 Security update for ucode-intel SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:11478-1 ucode-intel-20210608-1.2 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:3279-1 Security update for ucode-intel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:3457-1 Security update for ucode-intel SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2020:2075-1 Security update for ucode-intel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:3514-1 Security update for ucode-intel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:3276-1 Security update for ucode-intel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:3373-1 Security update for ucode-intel SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2020:2098-1 Security update for ucode-intel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:14546-1 Security update for microcode_ctl SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:14540-1 Security update for microcode_ctl SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2022-0999 Intel Prozessoren: Mehrere Schwachstellen ermöglichen Offenlegung von Informationen BSI CERT-Bund (WID) · Oct 12, 2025
- WID-SEC-2023-0063 Juniper Junos Space: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 8, 2025
- SUSE-SU-2020:3271-1 Security update for ucode-intel SUSE / openSUSE Security Updates · May 2, 2025
- ICSA-22-132-05 Siemens Industrial PCs and CNC devices CISA ICS & IT advisories · Dec 13, 2022
- SSA-678983 SSA-678983: Vulnerabilities in Industrial PCs and CNC devices using Intel CPUs (November 2020) Siemens ProductCERT · Dec 13, 2022
- ELSA-2021-3028 Important: microcode_ctl security, bug fix and enhancement update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Aug 9, 2021
- ELSA-2021-3027 Important: microcode_ctl security, bug fix and enhancement update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Aug 9, 2021
- ELSA-2020-5083 Moderate: microcode_ctl security, bug fix, and enhancement update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Nov 17, 2020
- ELSA-2020-5085 Moderate: microcode_ctl security, bug fix and enhancement update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Nov 17, 2020
References
- https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00381
- https://security.netapp.com/advisory/ntap-20201113-0006/
- FEDORA-2020-14fda1bf85 vendor-advisory
- [debian-lts-announce] 20210205 [SECURITY] [DLA 2546-1] intel-microcode security update mailing-list
- https://cert-portal.siemens.com/productcert/pdf/ssa-678983.pdf