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Ubuntu 22.04 LTS USN-6742-2 Critical: Bluetooth Authentication Exploit

ubuntu
Calendar Grey April 23, 2024
Dist Ubuntu Esm H88
Multiple security flaws in the Ubuntu kernel were addressed, including Bluetooth threats and system weaknesses.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-azure: Linux kernel for Microsoft Azure Cloud systems

- linux-lowlatency: Linux low latency kernel

- linux-nvidia: Linux kernel for NVIDIA systems

Details:

Daniele Antonioli discovered that the Secure Simple Pairing and Secure

Connections pairing in the Bluetooth protocol could allow an

unauthenticated user to complete authentication without pairing

credentials. A physically proximate attacker placed between two Bluetooth

devices could use this to subsequently impersonate one of the paired

devices. (CVE-2023-24023)

Several security issues were discovered in the Linux kernel.

An attacker could possibly use these to compromise the system.

This update corrects flaws in the following subsystems:

- JFS file system;

- Netfilter;

(CVE-2024-26581, CVE-2023-52600, CVE-2023-52603)

Topics%20covered

Topics Covered

security advisory security issue critical authentication issue ubuntu linux kernel bluetooth

Update Instructions

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

Ubuntu 22.04 LTS:
   linux-image-5.15.0-105-lowlatency  5.15.0-105.115
   linux-image-5.15.0-105-lowlatency-64k  5.15.0-105.115
   linux-image-5.15.0-1053-nvidia  5.15.0-1053.54
   linux-image-5.15.0-1053-nvidia-lowlatency  5.15.0-1053.54
   linux-image-5.15.0-1061-azure   5.15.0-1061.70
   linux-image-azure-lts-22.04     5.15.0.1061.59
   linux-image-lowlatency          5.15.0.105.100
   linux-image-lowlatency-64k      5.15.0.105.100
   linux-image-nvidia              5.15.0.1053.53
   linux-image-nvidia-lowlatency   5.15.0.1053.53

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.

References

https://ubuntu.com/security/notices/USN-6742-2

https://ubuntu.com/security/notices/USN-6742-1

CVE-2023-24023, CVE-2023-52600, CVE-2023-52603, CVE-2024-26581

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-6742-2

Topics%20covered

Topics Covered

security advisory security issue critical authentication issue ubuntu linux kernel bluetooth

Package Information

https://launchpad.net/ubuntu/+source/linux-lowlatency/5.15.0-105.115

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