CVE-2024-23918
Publication date 13 November 2024
Last updated 3 July 2025
Ubuntu priority
Description
Improper conditions check in some Intel(R) Xeon(R) processor memory controller configurations when using Intel(R) SGX may allow a privileged user to potentially enable escalation of privilege via local access.
From the Ubuntu Security Team
Avraham Shalev and Nagaraju N Kodalapura discovered that some Intel(R) Xeon(R) processors did not properly restrict access to the memory controller when using Intel(R) SGX. This may allow a local privileged attacker to further escalate their privileges.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| intel-microcode | ||
| 24.04 LTS noble |
Fixed 3.20241112.0ubuntu0.24.04.1
|
|
| 22.04 LTS jammy |
Fixed 3.20241112.0ubuntu0.22.04.1
|
|
| 20.04 LTS focal |
Fixed 3.20241112.0ubuntu0.20.04.1
|
|
| 18.04 LTS bionic |
Fixed 3.20241112.0ubuntu0.18.04.1+esm1
|
|
| 16.04 LTS xenial |
Fixed 3.20241112.0ubuntu0.16.04.1+esm1
|
|
| 14.04 LTS trusty | Ignored trusty doesn't support late loading of microcode |
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Get Ubuntu Pro 30-day free trialSeverity score breakdown
| Parameter | Value |
|---|---|
| Base score |
8.8 · High
|
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | Low |
| User interaction | None |
| Scope | Changed |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
References
Related Ubuntu Security Notices (USN)
- USN-7149-1
- Intel Microcode vulnerabilities
- 11 December 2024