Summary
USN-5267-1 fixed vulnerabilities in the Linux kernel. This update
provides the corresponding updates for the Linux kernel for Raspberry
Pi devices.
Original advisory details:
It was discovered that the Bluetooth subsystem in the Linux kernel
contained a use-after-free vulnerability. A local attacker could use this
to cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2021-3640)
Likang Luo discovered that a race condition existed in the Bluetooth
subsystem of the Linux kernel, leading to a use-after-free vulnerability. A
local attacker could use this to cause a denial of service (system crash)
or possibly execute arbitrary code. (CVE-2021-3752)
Luo Likang discovered that the FireDTV Firewire driver in the Linux kernel
did not properly perform bounds checking in some situations. A local
attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2021-42739)
Fixed packages 2
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 18.04 LTS 18.04:LTS | linux-raspi-5.4 | 5.4.0-1052.58~18.04.1 |
| Ubuntu · 20.04 LTS 20.04:LTS | linux-raspi | 5.4.0-1052.58 |
Vulnerabilities 3
-
Unscored —
A flaw use-after-free in function sco_sock_sendmsg() of the Linux kernel HCI subsystem was found in the way user calls …
-
Unscored —
A use-after-free flaw was found in the Linux kernel’s Bluetooth subsystem in the way user calls connect to the socket a…
-
Unscored —
The firewire subsystem in the Linux kernel through 5.14.13 has a buffer overflow related to drivers/media/firewire/fire…