Ubuntu 22.04 LTS USN-7179-2 critical: Bluetooth DoS and more

ubuntu

January 6, 2025

Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-aws: Linux kernel for Amazon Web Services (AWS) systems

- linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems

- linux-nvidia: Linux kernel for NVIDIA systems

- linux-oracle: Linux kernel for Oracle Cloud systems

- linux-raspi: Linux kernel for Raspberry Pi systems

- linux-aws-5.15: Linux kernel for Amazon Web Services (AWS) systems

- linux-gcp-5.15: Linux kernel for Google Cloud Platform (GCP) systems

- linux-hwe-5.15: Linux hardware enablement (HWE) kernel

Details:

Andy Nguyen discovered that the Bluetooth L2CAP implementation in the Linux

kernel contained a type-confusion error. A physically proximate remote

attacker could use this to cause a denial of service (system crash) or

possibly execute arbitrary code. (CVE-2020-12351)

Andy Nguyen discovered that the Bluetooth A2MP implementation in the Linux

kernel did not properly initialize memory in some situation...

Read the Full Advisory

Topics Covered

security advisory update Ubuntu kernel Denial of Service Bluetooth

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 22.04 LTS
   linux-image-5.15.0-1070-nvidia  5.15.0-1070.71
   linux-image-5.15.0-1070-nvidia-lowlatency  5.15.0-1070.71
   linux-image-5.15.0-1070-raspi   5.15.0-1070.73
   linux-image-5.15.0-1073-oracle  5.15.0-1073.79
   linux-image-5.15.0-1074-gcp     5.15.0-1074.83
   linux-image-5.15.0-1076-aws     5.15.0-1076.83
   linux-image-aws-lts-22.04       5.15.0.1076.78
   linux-image-gcp-lts-22.04       5.15.0.1074.70
   linux-image-nvidia              5.15.0.1070.70
   linux-image-nvidia-lowlatency   5.15.0.1070.70
   linux-image-oracle-lts-22.04    5.15.0.1073.69
   linux-image-raspi               5.15.0.1070.68
   linux-image-raspi-nolpae        5.15.0.1070.68

Ubuntu 20.04 LTS
   linux-image-5.15.0-1074-gcp     5.15.0-1074.83~20.04.1
   linux-image-5.15.0-1075-aws     5.15.0-1075.82~20.04.1
   linux-image-5.15.0-130-generic  5.15.0-130.140~20.04.1
   linux-image-5.15.0-130-generic-64k  5.15.0-130.140~20.04.1
   linux-image-5.15.0-130-generic-lpae  5.15.0-130.140~20.04.1
   linux-image-aws                 5.15.0.1075.82~20.04.1
   linux-image-gcp                 5.15.0.1074.83~20.04.1
   linux-image-generic-64k-hwe-20.04  5.15.0.130.140~20.04.1
   linux-image-generic-hwe-20.04   5.15.0.130.140~20.04.1
   linux-image-generic-lpae-hwe-20.04  5.15.0.130.140~20.04.1
   linux-image-oem-20.04           5.15.0.130.140~20.04.1
   linux-image-oem-20.04b          5.15.0.130.140~20.04.1
   linux-image-oem-20.04c          5.15.0.130.140~20.04.1
   linux-image-oem-20.04d          5.15.0.130.140~20.04.1
   linux-image-virtual-hwe-20.04   5.15.0.130.140~20.04.1

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.