CVE-2024-43420
Publication date 13 May 2025
Last updated 30 May 2025
Ubuntu priority
Cvss 3 Severity Score
Exposure of sensitive information caused by shared microarchitectural predictor state that influences transient execution for some Intel Atom(R) processors may allow an authenticated user to potentially enable information disclosure via local access.
Status
Package | Ubuntu Release | Status |
---|---|---|
intel-microcode | 25.04 plucky |
Fixed 3.20250512.0ubuntu0.25.04.1
|
24.10 oracular |
Fixed 3.20250512.0ubuntu0.24.10.1
|
|
24.04 LTS noble |
Fixed 3.20250512.0ubuntu0.24.04.1
|
|
22.04 LTS jammy |
Fixed 3.20250512.0ubuntu0.22.04.1
|
|
20.04 LTS focal |
Fixed 3.20250512.0ubuntu0.20.04.1
|
|
18.04 LTS bionic |
Fixed 3.20250512.0ubuntu0.18.04.1+esm1
|
|
16.04 LTS xenial |
Fixed 3.20250512.0ubuntu0.16.04.1+esm1
|
|
14.04 LTS trusty | Ignored see notes |
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ebarretto
trusty cannot use intel-microcode during early boot and is therefore generally not updated.
Severity score breakdown
Parameter | Value |
---|---|
Base score |
|
Attack vector | Local |
Attack complexity | High |
Privileges required | Low |
User interaction | None |
Scope | Changed |
Confidentiality | High |
Integrity impact | None |
Availability impact | None |
Vector | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N |
References
Related Ubuntu Security Notices (USN)
- USN-7535-1
- Intel Microcode vulnerabilities
- 27 May 2025
Other references
- https://www.cve.org/CVERecord?id=CVE-2024-43420
- https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01247.html
- https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/releases/tag/microcode-20250512
- https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01247.html