CVE-2024-35884
Description
CVE-2024-35884 highlights a flaw in the Linux kernel's handling of UDP packets when Generic Receive Offload (GRO) forwarding is enabled. The issue occurs because non-tunnel UDP packets are sometimes mistakenly processed as if they belong to a tunnel. This can lead to data corruption or kernel crashes, particularly in environments with complex network configurations or when certain tunneling protocols like Geneve are used.
The kernel's processing logic for GRO and UDP packets fails to properly differentiate between tunneled and non-tunneled packets. As a result, improperly handled packets may lead to segmentation errors or system instability.
This vulnerability affects system availability and could result in crashes or data integrity issues during packet forwarding.
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 | 8.8 |
| Attack Vector | Local | Local | Network |
| 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 | High |
| 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:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Frequently Asked Questions
Not sure what something means? Check out our Security Glossary.
Want to get errata notifications? Sign up here.
