cbcvebase.
CVE-2021-33034
published 2021-05-14

CVE-2021-33034: In the Linux kernel before 5.12.4, net/bluetooth/hci_event.c has a use-after-free when destroying an hci_chan, aka CID-5c4c8c954409. This leads to writing an…

PriorityP339high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.82%
53.6th percentile
In the Linux kernel before 5.12.4, net/bluetooth/hci_event.c has a use-after-free when destroying an hci_chan, aka CID-5c4c8c954409. This leads to writing an arbitrary value.

Affected

15 ranges
VendorProductVersion rangeFixed in
debiandebian_linux
debianlinux< linux 5.10.38-1 (bookworm)linux 5.10.38-1 (bookworm)
fedoraprojectfedora
linuxlinux_kernel< 5.12.45.12.4
linuxlinux_kernel>= 0 < 5.10.38-15.10.38-1
linuxlinux_kernel>= 0 < 5.10.38-15.10.38-1
linuxlinux_kernel>= 0 < 5.10.38-15.10.38-1
linuxlinux_kernel>= 0 < 5.10.38-15.10.38-1
linuxlinux_kernel>= 0 < 4.15.0-151.1574.15.0-151.157
linuxlinux_kernel>= 0 < 5.4.0-77.865.4.0-77.86
linuxlinux_kernel>= 0 < 4.4.0-222.2554.4.0-222.255
linuxlinux_kernel>= 0 < 4.4.0-219.2524.4.0-219.252
msrccbl2_kernel_5.10.78.1-1_on_cbl_mariner_2.0
msrccm1_kernel_5.10.60.1-1_on_cbl_mariner_1.0
paloaltopan-os

CVSS provenance

nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvdv2.04.6MEDIUMAV:L/AC:L/Au:N/C:P/I:P/A:P
osv7.8HIGH
vendor_debian7.8HIGH
vendor_msrc7.8HIGH
vendor_redhat7.8HIGH
vendor_ubuntu7.8HIGH
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