CVE-2024-46672

wifi: brcmfmac: cfg80211: Handle SSID based pmksa deletion

EPSS 0.2%

Vexday Risk Score

3Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS —EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

11 Sep 2024Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: cfg80211: Handle SSID based pmksa deletion wpa_supplicant 2.11 sends since 1efdba5fdc2c ("Handle PMKSA flush in the driver for SAE/OWE offload cases") SSID based PMKSA del commands. brcmfmac is not prepared and tries to dereference the NULL bssid and pmkid pointers in cfg80211_pmksa. PMKID_V3 operations support SSID based updates so copy the SSID.

Affected products

Linux · Linux

References

https://git.kernel.org/stable/c/1f566eb912d192c83475a919331aea59619e1197 https://git.kernel.org/stable/c/2ad4e1ada8eebafa2d75a4b75eeeca882de6ada1 https://git.kernel.org/stable/c/4291f94f8c6b01505132c22ee27b59ed27c3584f