CVE-2024-46672

MEDIUM5.5

wifi: brcmfmac: cfg80211: Handle SSID based pmksa deletion

Published Sep 11, 2024

Modified 8 months ago

No fix available

Details

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.

References

WEBhttps://git.kernel.org/stable/c/1f566eb912d192c83475a919331aea59619e1197 WEBhttps://git.kernel.org/stable/c/2ad4e1ada8eebafa2d75a4b75eeeca882de6ada1 WEBhttps://git.kernel.org/stable/c/4291f94f8c6b01505132c22ee27b59ed27c3584f ADVISORYhttps://www.cve.org/CVERecord?id=CVE-2024-46672

CVSS Analysis

CVSS v3.1

5.5

Exploitability

Attack Vector

LocalAV:L

Attack Complexity

LowAC:L

Privileges Required

LowPR:L

User Interaction

NoneUI:N

Scope

UnchangedS:U

Impact

Confidentiality

NoneC:N

Integrity

NoneI:N

Availability

HighA:H

5.5/CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Ecosystems

Timeline

PublishedSep 11, 2024

ModifiedMay 4, 2025