CVE-2024-47713
Description
A flaw was found in the Linux kernel's mac80211 wireless subsystem. A local attacker with low privileges could trigger a condition where the system attempts to transmit data with interrupts disabled during the ieee80211_do_stop() function. This incorrect handling of network packet buffers (SKBs) can lead to system instability or a denial of service (DoS), making the system unresponsive.
Mitigation
If WiFi functionality is not required, the `mac80211` kernel module can be blacklisted to prevent it from loading. Create a file `/etc/modprobe.d/blacklist-mac80211.conf` with the content `blacklist mac80211`. A system reboot is required for this change to take effect. Disabling this module will prevent all WiFi operations on the system.
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 | N/A |
| Attack Vector | Local | Local | N/A |
| Attack Complexity | Low | Low | N/A |
| Privileges Required | Low | Low | N/A |
| User Interaction | None | None | N/A |
| Scope | Unchanged | Unchanged | N/A |
| Confidentiality | None | None | N/A |
| Integrity Impact | None | None | N/A |
| Availability Impact | High | High | N/A |
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
Understanding the Weakness (CWE)
Other
Technical Impact: Other
Frequently Asked Questions
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