Description
Protection mechanism failure of bus lock regulator for some Intel(R) Processors may allow an unauthenticated user to potentially enable denial of service via network 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 | 3.20240312.1 | — |
| Debian 13 | intel-microcode | 3.20240312.1 | — |
| Debian 12 | intel-microcode | 3.20240312.1~deb12u1 | — |
| Debian 10 | intel-microcode | 3.20240312.1~deb10u1 | DLA-3808-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | intel-microcode | 3.20240514.0ubuntu0.24.04.1 | USN-6797-1 |
| Ubuntu 22.04 LTS | intel-microcode | 3.20240514.0ubuntu0.22.04.1 | USN-6797-1 |
| Ubuntu 20.04 LTS | intel-microcode | 3.20240514.0ubuntu0.20.04.1 | USN-6797-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | intel-microcode | 3.20240514.0ubuntu0.18.04.1+esm1 | USN-6797-1 |
| Ubuntu Pro 16.04 LTS | intel-microcode | 3.20240514.0ubuntu0.16.04.1+esm1 | USN-6797-1 |
| Ubuntu Pro 14.04 LTS | intel-microcode | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | microcode_ctl | 4:20230808-2.20240531.1.el9_4 | RHSA-2024:9401, RHEA-2024:7620 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | microcode_ctl | 4:20240910-1.el9_5 | ALSA-2024:9401 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 9 | microcode_ctl | 4:20240910-1.el9_5 | RLSA-2024:9401 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP5 | ucode-intel | 20240312-150200.38.1 | SUSE-SU-2024:1139-1 |
| SLES 15 SP4 | ucode-intel | 20240312-150200.38.1 | SUSE-SU-2024:1139-1 |
| SLES 15 SP3 | ucode-intel | 20240312-150200.38.1 | SUSE-SU-2024:1139-1 |
| SLES 15 SP2 | ucode-intel | 20240312-150200.38.1 | SUSE-SU-2024:1139-1 |
| SLES 12 SP5 | ucode-intel | 20240312-134.1 | SUSE-SU-2024:0917-1 |
Show 17 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 11 SP4 | microcode_ctl | 1.17-102.83.81.1 | SUSE-SU-2025:1032-1 |
| SLES for SAP 15 SP4 | ucode-intel | 20240312-150200.38.1 | SUSE-SU-2024:1139-1 |
| SLES for SAP 15 SP3 | ucode-intel | 20240312-150200.38.1 | SUSE-SU-2024:1139-1 |
| SLES for SAP 15 SP2 | ucode-intel | 20240312-150200.38.1 | SUSE-SU-2024:1139-1 |
| SLES for SAP 12 SP5 | ucode-intel | 20240312-134.1 | SUSE-SU-2024:0917-1 |
| SLE Micro 6.0 | ucode-intel | 20240813-1.1 | SUSE-SU-2025:20020-1 |
| SLE Micro 5.5 | ucode-intel | 20240312-150200.38.1 | SUSE-SU-2024:1139-1 |
| SLE Micro 5.4 | ucode-intel | 20240312-150200.38.1 | SUSE-SU-2024:1139-1 |
| SLE Micro 5.3 | ucode-intel | 20240312-150200.38.1 | SUSE-SU-2024:1139-1 |
| SLE Micro 5.2 | ucode-intel | 20240312-150200.38.1 | SUSE-SU-2024:1139-1 |
| SLE Micro 5.1 | ucode-intel | 20240312-150200.38.1 | SUSE-SU-2024:1139-1 |
| SLE HPC 15 SP4 | ucode-intel | 20240312-150200.38.1 | SUSE-SU-2024:1139-1 |
| SLE HPC 15 SP3 | ucode-intel | 20240312-150200.38.1 | SUSE-SU-2024:1139-1 |
| SLE HPC 15 SP2 | ucode-intel | 20240312-150200.38.1 | SUSE-SU-2024:1139-1 |
| SUSE Manager Server 4.3 | ucode-intel | 20240312-150200.38.1 | SUSE-SU-2024:1139-1 |
| SUSE Manager Proxy 4.3 | ucode-intel | 20240312-150200.38.1 | SUSE-SU-2024:1139-1 |
| SUSE Enterprise Storage 7.1 | ucode-intel | 20240312-150200.38.1 | SUSE-SU-2024:1139-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | ucode-intel | 20240312-1.1 | openSUSE-SU-2024:13769-1 |
| openSUSE Leap 15.5 | ucode-intel | 20240312-150200.38.1 | SUSE-SU-2024:1139-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap Micro 5.4 | ucode-intel | 20240312-150200.38.1 | SUSE-SU-2024:1139-1 |
| openSUSE Leap Micro 5.3 | ucode-intel | 20240312-150200.38.1 | SUSE-SU-2024:1139-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | intel-ucode | 20240312-r0 | — |
| Alpine v3.23 | intel-ucode | 20240312-r0 | — |
| Alpine v3.22 | intel-ucode | 20240312-r0 | — |
| Alpine v3.21 | intel-ucode | 20240312-r0 | — |
| Alpine v3.20 | intel-ucode | 20240312-r0 | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | intel-ucode | 20240312-r0 | — |
| Alpine v3.18 | intel-ucode | 20240813-r0 | — |
| Alpine v3.17 | intel-ucode | 20240813-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | microcode_ctl | 2:2.1-53.amzn2023.0.5 | ALAS2023-2024-559 |
| Amazon Linux 2 | microcode_ctl | 2:2.1-47.amzn2.4.17 | ALAS2-2024-2491 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | microcode_ctl | 4:20240910-1.0.1.el9_5 | ELSA-2024-9401 |
Advisories 15
- ALSA-2024:9401 Moderate: microcode_ctl security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2024:9401 Red Hat Security Advisory: microcode_ctl security update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHEA-2024:7620 Red Hat Enhancement Advisory: microcode_ctl bug fix and enhancement update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- USN-6797-1 intel-microcode vulnerabilities Ubuntu Security Notices (USN) · Jun 25, 2026
- SUSE-SU-2025:20020-1 Security update for ucode-intel SUSE / openSUSE Security Updates · Mar 23, 2026
- DLA-3808-1 intel-microcode - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2024:9401 Moderate: microcode_ctl security update Rocky Linux Security Advisories · Feb 4, 2026
- SUSE-SU-2024:0917-1 Security update for ucode-intel SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:13769-1 ucode-intel-20240312-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1139-1 Security update for ucode-intel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:1032-1 Security update for microcode_ctl SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2024-0615 Intel Prozessor: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 4, 2025
- ELSA-2024-9401 Moderate: microcode_ctl security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Nov 14, 2024
- ALAS2023-2024-559 Moderate: microcode_ctl security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Mar 13, 2024
- ALAS2-2024-2491 Moderate: microcode_ctl security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Mar 12, 2024