CVE Catalog

CVE-2024-35789

HighCVSS 8.0
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.26%

17th percentile - higher than 17% of all known CVEs

Summary

A vulnerability has been identified in the Linux kernel related to VLAN handling in the mac80211 module. The issue arises when moving a station out of a VLAN and deleting the VLAN, as the fast_rx entry still holds a pointer to the VLAN's netdev, potentially leading to use-after-free bugs.

Risk Assessment

Organizations may be exposed to attacks exploiting this vulnerability, which could lead to unauthorized access or system instability. Specifically, attackers could leverage memory errors to gain control over the system.

Recommendation

It is recommended to update the Linux kernel to the latest version where this vulnerability has been fixed. Additionally, monitor systems for unauthorized changes in VLAN configuration.

Related vulnerabilities

Original NVD description (English source)

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: check/clear fast rx for non-4addr sta VLAN changes When moving a station out of a VLAN and deleting the VLAN afterwards, the fast_rx entry still holds a pointer to the VLAN's netdev, which can cause use-after-free bugs. Fix this by immediately calling ieee80211_check_fast_rx after the VLAN change.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS