cbcvebase.
CVE-2023-53715
published 2025-10-22

CVE-2023-53715: In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: cfg80211: Pass the PMK in binary instead of hex Apparently the hex…

PriorityP422low3.9
EPSS
0.19%
9.5th percentile
In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: cfg80211: Pass the PMK in binary instead of hex Apparently the hex passphrase mechanism does not work on newer chips/firmware (e.g. BCM4387). It seems there was a simple way of passing it in binary all along, so use that and avoid the hexification. OpenBSD has been doing it like this from the beginning, so this should work on all chips. Also clear the structure before setting the PMK. This was leaking uninitialized stack contents to the device.

Affected

21 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.37-1 (bookworm)linux 6.1.37-1 (bookworm)
linuxlinux——
linuxlinux>= b8a64f0e96c2b258321ee03975aeb0f5e88a055b < 1687845eb8f37360a9ee849a3587ab659b0907731687845eb8f37360a9ee849a3587ab659b090773
linuxlinux>= b8a64f0e96c2b258321ee03975aeb0f5e88a055b < 2bc34facb90ceeff6f8c17d2006575a6d07c38252bc34facb90ceeff6f8c17d2006575a6d07c3825
linuxlinux>= b8a64f0e96c2b258321ee03975aeb0f5e88a055b < 56c7e9c39bd54fd753c0c4b1ed10278cbd3a5f0256c7e9c39bd54fd753c0c4b1ed10278cbd3a5f02
linuxlinux>= b8a64f0e96c2b258321ee03975aeb0f5e88a055b < 4e8dc0e5c7636efaadbd7e488acd34b4291c04314e8dc0e5c7636efaadbd7e488acd34b4291c0431
linuxlinux>= b8a64f0e96c2b258321ee03975aeb0f5e88a055b < e242c66f7ecfe8f5b6eb308f4ea464fd8589c866e242c66f7ecfe8f5b6eb308f4ea464fd8589c866
linuxlinux>= b8a64f0e96c2b258321ee03975aeb0f5e88a055b < f8a6c53ff1d91acd5a20eb627edbffd816eb9a4ef8a6c53ff1d91acd5a20eb627edbffd816eb9a4e
linuxlinux>= b8a64f0e96c2b258321ee03975aeb0f5e88a055b < 2fa3a5226b05e0a797c68b9609dcebe0cd236b272fa3a5226b05e0a797c68b9609dcebe0cd236b27
linuxlinux>= b8a64f0e96c2b258321ee03975aeb0f5e88a055b < 89b89e52153fda2733562776c7c9d9d3ebf8dd6d89b89e52153fda2733562776c7c9d9d3ebf8dd6d
linuxlinux_kernel>= 0 < 5.10.191-15.10.191-1
linuxlinux_kernel>= 0 < 6.1.37-16.1.37-1
linuxlinux_kernel>= 0 < 6.3.7-16.3.7-1
linuxlinux_kernel>= 0 < 6.3.7-16.3.7-1
linuxlinux_kernel>= 4.13.0 < 4.14.3164.14.316
linuxlinux_kernel>= 4.15.0 < 4.19.2844.19.284
linuxlinux_kernel>= 4.20.0 < 5.4.2445.4.244
linuxlinux_kernel>= 5.11.0 < 5.15.1135.15.113
linuxlinux_kernel>= 5.16.0 < 6.1.306.1.30
linuxlinux_kernel>= 5.5.0 < 5.10.1815.10.181
linuxlinux_kernel>= 6.2.0 < 6.3.46.3.4
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