USN-6283-1: Linux kernel vulnerabilities
11 August 2023
Several security issues were fixed in the Linux kernel.
Releases
Packages
- linux - Linux kernel
- linux-aws - Linux kernel for Amazon Web Services (AWS) systems
- linux-azure - Linux kernel for Microsoft Azure Cloud systems
- linux-gcp - Linux kernel for Google Cloud Platform (GCP) systems
- linux-ibm - Linux kernel for IBM cloud systems
- linux-kvm - Linux kernel for cloud environments
- linux-lowlatency - Linux low latency kernel
- linux-oracle - Linux kernel for Oracle Cloud systems
- linux-raspi - Linux kernel for Raspberry Pi systems
Details
Ruihan Li discovered that the bluetooth subsystem in the Linux kernel did
not properly perform permissions checks when handling HCI sockets. A
physically proximate attacker could use this to cause a denial of service
(bluetooth communication). (CVE-2023-2002)
Zheng Zhang discovered that the device-mapper implementation in the Linux
kernel did not properly handle locking during table_clear() operations. A
local attacker could use this to cause a denial of service (kernel
deadlock). (CVE-2023-2269)
It was discovered that the Ricoh R5C592 MemoryStick card reader driver in
the Linux kernel contained a race condition during module unload, 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-2023-3141)
Quentin Minster discovered that the KSMBD implementation in the Linux
kernel did not properly validate pointers in some situations, leading to a
null pointer dereference vulnerability. A remote attacker could use this to
cause a denial of service (system crash). (CVE-2023-32248)
Quentin Minster discovered that a race condition existed in the KSMBD
implementation in the Linux kernel, leading to a use-after-free
vulnerability. A remote attacker could use this to cause a denial of
service (system crash) or possibly execute arbitrary code. (CVE-2023-32254)
It was discovered that the kernel->user space relay implementation in the
Linux kernel did not properly perform certain buffer calculations, leading
to an out-of-bounds read vulnerability. A local attacker could use this to
cause a denial of service (system crash) or expose sensitive information
(kernel memory). (CVE-2023-3268)
It was discovered that the QCOM CPUFreq HW driver in the Linux kernel on
ARM processors did not properly handle device unbind. A local attacker
could use this to cause a denial of service (system crash). (CVE-2023-3312)
It was discovered that the MediaTek MT7921E (PCIe) WiFi driver in the Linux
kernel contained a use-after-free vulnerability when querying the firmware
features of the device. A local attacker could use this to cause a denial
of service (system crash). (CVE-2023-3317)
It was discovered that the video4linux driver for Philips based TV cards in
the Linux kernel contained a race condition during device removal, leading
to a use-after-free vulnerability. A physically proximate attacker could
use this to cause a denial of service (system crash) or possibly execute
arbitrary code. (CVE-2023-35823)
It was discovered that the SDMC DM1105 PCI device driver in the Linux
kernel contained a race condition during device removal, leading to a use-
after-free vulnerability. A physically proximate attacker could use this to
cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2023-35824)
It was discovered that the Allwinner Cedar video engine driver in the Linux
kernel contained a race condition during device removal, leading to a use-
after-free vulnerability. A privileged attacker could use this to cause a
denial of service (system crash) or possibly execute arbitrary code.
(CVE-2023-35826)
It was discovered that the Renesas USB controller driver in the Linux
kernel contained a race condition during device removal, leading to a use-
after-free vulnerability. A privileged attacker could use this to cause a
denial of service (system crash) or possibly execute arbitrary code.
(CVE-2023-35828)
It was discovered that the Rockchip Video Decoder IP driver in the Linux
kernel contained a race condition during device removal, leading to a use-
after-free vulnerability. A privileged attacker could use this to cause a
denial of service (system crash) or possibly execute arbitrary code.
(CVE-2023-35829)
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 23.04
-
linux-image-6.2.0-1007-ibm
-
6.2.0-1007.7
-
linux-image-6.2.0-1009-aws
-
6.2.0-1009.9
-
linux-image-6.2.0-1009-azure
-
6.2.0-1009.9
-
linux-image-6.2.0-1009-oracle
-
6.2.0-1009.9
-
linux-image-6.2.0-1010-kvm
-
6.2.0-1010.10
-
linux-image-6.2.0-1010-lowlatency
-
6.2.0-1010.10
-
linux-image-6.2.0-1010-lowlatency-64k
-
6.2.0-1010.10
-
linux-image-6.2.0-1010-raspi
-
6.2.0-1010.12
-
linux-image-6.2.0-1011-gcp
-
6.2.0-1011.11
-
linux-image-6.2.0-27-generic
-
6.2.0-27.28
-
linux-image-6.2.0-27-generic-64k
-
6.2.0-27.28
-
linux-image-6.2.0-27-generic-lpae
-
6.2.0-27.28
-
linux-image-aws
-
6.2.0.1009.10
-
linux-image-azure
-
6.2.0.1009.9
-
linux-image-gcp
-
6.2.0.1011.11
-
linux-image-generic
-
6.2.0.27.27
-
linux-image-generic-64k
-
6.2.0.27.27
-
linux-image-generic-lpae
-
6.2.0.27.27
-
linux-image-ibm
-
6.2.0.1007.7
-
linux-image-kvm
-
6.2.0.1010.10
-
linux-image-lowlatency
-
6.2.0.1010.10
-
linux-image-lowlatency-64k
-
6.2.0.1010.10
-
linux-image-oracle
-
6.2.0.1009.9
-
linux-image-raspi
-
6.2.0.1010.13
-
linux-image-raspi-nolpae
-
6.2.0.1010.13
-
linux-image-virtual
-
6.2.0.27.27
After a standard system update you need to reboot your computer to make
all the necessary changes.
ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.
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