USN-5700-1: Linux kernel vulnerabilities
26 October 2022
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
David Bouman and Billy Jheng Bing Jhong discovered that a race condition
existed in the io_uring subsystem in 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-2022-2602)
Sönke Huster discovered that an integer overflow vulnerability existed in
the WiFi driver stack in the Linux kernel, leading to a buffer overflow. A
physically proximate attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code. (CVE-2022-41674)
Sönke Huster discovered that a use-after-free vulnerability existed in the
WiFi driver stack in the Linux kernel. A physically proximate attacker
could use this to cause a denial of service (system crash) or possibly
execute arbitrary code. (CVE-2022-42719)
Sönke Huster discovered that the WiFi driver stack in the Linux kernel did
not properly perform reference counting in some situations, 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-2022-42720)
Sönke Huster discovered that the WiFi driver stack in the Linux kernel did
not properly handle BSSID/SSID lists in some situations. A physically
proximate attacker could use this to cause a denial of service (infinite
loop). (CVE-2022-42721)
Sönke Huster discovered that the WiFi driver stack in the Linux kernel
contained a NULL pointer dereference vulnerability in certain situations. A
physically proximate attacker could use this to cause a denial of service
(system crash). (CVE-2022-42722)
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 22.10
-
linux-image-5.19.0-1011-aws
-
5.19.0-1011.12
-
linux-image-5.19.0-1006-raspi-nolpae
-
5.19.0-1006.13
-
linux-image-5.19.0-23-generic
-
5.19.0-23.24
-
linux-image-virtual
-
5.19.0.23.22
-
linux-image-5.19.0-1010-ibm
-
5.19.0-1010.11
-
linux-image-generic-64k
-
5.19.0.23.22
-
linux-image-generic
-
5.19.0.23.22
-
linux-image-aws
-
5.19.0.1011.10
-
linux-image-5.19.0-1010-kvm
-
5.19.0-1010.11
-
linux-image-5.19.0-1006-raspi
-
5.19.0-1006.13
-
linux-image-ibm
-
5.19.0.1010.9
-
linux-image-lowlatency-64k
-
5.19.0.1009.8
-
linux-image-5.19.0-1010-gcp
-
5.19.0-1010.11
-
linux-image-5.19.0-1010-azure
-
5.19.0-1010.11
-
linux-image-5.19.0-23-generic-64k
-
5.19.0-23.24
-
linux-image-azure
-
5.19.0.1010.9
-
linux-image-raspi-nolpae
-
5.19.0.1006.7
-
linux-image-5.19.0-1009-lowlatency-64k
-
5.19.0-1009.10
-
linux-image-oem-22.04
-
5.19.0.23.22
-
linux-image-5.19.0-1009-lowlatency
-
5.19.0-1009.10
-
linux-image-gcp
-
5.19.0.1010.9
-
linux-image-5.19.0-1010-oracle
-
5.19.0-1010.11
-
linux-image-oracle
-
5.19.0.1010.9
-
linux-image-raspi
-
5.19.0.1006.7
-
linux-image-kvm
-
5.19.0.1010.9
-
linux-image-generic-lpae
-
5.19.0.23.22
-
linux-image-lowlatency
-
5.19.0.1009.8
-
linux-image-5.19.0-23-generic-lpae
-
5.19.0-23.24
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.