CVE-2023-53708
Description
A memory leak was found in the Linux kernel's ACPI x86 suspend-to-idle implementation in the AMD Low Power S0 (LPS0) DSM evaluation code. A system with malformed ACPI firmware that returns multiple ACPI_TYPE_PACKAGE objects during _DSM evaluation can trigger repeated memory allocations that are never freed. This leads to gradual memory exhaustion and potential denial of service.
Statement
The AMD LPS0 DSM handler expects a single package object but doesn't guard against firmware returning multiples. Each extra package leaks memory.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 4 | N/A | N/A |
| Attack Vector | Local | N/A | N/A |
| Attack Complexity | Low | N/A | N/A |
| Privileges Required | None | N/A | N/A |
| User Interaction | None | N/A | N/A |
| Scope | Unchanged | N/A | N/A |
| Confidentiality | None | N/A | N/A |
| Integrity Impact | None | N/A | N/A |
| Availability Impact | Low | N/A | N/A |
Vector
Red Hat: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
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