CVE-2024-27434
Description
CVE-2024-27434 is a flaw in the Linux kernel’s iwlwifi driver related to handling Management Frame Protection (MFP) in certain Wi-Fi configurations. When connecting to an access point using TKIP as the group cipher, the driver incorrectly applies the MFP flag to the Group Temporal Key (GTK), which is not supported in this context. This can result in firmware crashes and instability. The issue has been fixed by ensuring the driver does not set the MFP flag for incompatible group ciphers like TKIP. Updating to a patched kernel version is recommended to resolve this vulnerability.
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 | Adjacent Network |
| Attack Complexity | Low | Low | Low |
| Privileges Required | Low | Low | None |
| User Interaction | None | None | None |
| Scope | Unchanged | Unchanged | Unchanged |
| Confidentiality | None | None | None |
| Integrity Impact | None | None | Low |
| 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:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
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