CVE-2024-35797
Description
CVE-2024-35797 is a vulnerability in the Linux kernel’s memory management, specifically affecting the cachestat feature when handling shared memory. The flaw stems from race conditions during operations like swapping or invalidation, which can lead to out-of-bounds memory access or invalid pointer dereferencing. These issues can result in crashes or system instability. The kernel has been patched to improve checks and handling of swap entries to ensure stable and safe operation.
Statement
This vulnerability is rated as having a Moderate impact because it requires local access to trigger concurrent shared memory swapping and cachestat operations, which can lead to a system crash. The issue is confined to local users with access to the system call interface and cannot be exploited across the network. Successful triggering causes kernel instability or a denial of service rather than code execution or privilege escalation.
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 | 5.5 | 5.5 | 7.1 |
| Attack Vector | Local | Local | Local |
| Attack Complexity | Low | Low | Low |
| Privileges Required | Low | Low | Low |
| User Interaction | None | None | None |
| Scope | Unchanged | Unchanged | Unchanged |
| Confidentiality | None | None | High |
| Integrity Impact | None | None | None |
| Availability Impact | High | High | High |
Vector
Red Hat: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
cve.org: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
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