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Ubuntu 22.04 LTS USN-7179-4: Severe Bluetooth Issues Affecting Kernel

ubuntu
Calendar Grey January 27, 2025
Dist Ubuntu Esm H88
Numerous security patches released for the Ubuntu linux-xilinx-zynqmp kernel tackling severe vulnerabilities. Stay informed to protect your device.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-xilinx-zynqmp: Linux kernel for Xilinx ZynqMP processors

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 situations. A physically

proximate remote attacker could use this to expose sensitive information

(kernel memory). (CVE-2020-12352)

Andy Nguyen discovered that the Bluetooth HCI event packet parser in the

Linux kernel did not properly handle event advertisements of certain sizes,

leading to a heap-based buffer overflow. A physically proximate remote

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

p...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service buffer overflow ubuntu processor security 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-5.15.0-1041-xilinx-zynqmp  5.15.0-1041.45
   linux-image-xilinx-zynqmp       5.15.0.1041.45

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-7179-4

https://ubuntu.com/security/notices/USN-7179-3

https://ubuntu.com/security/notices/USN-7179-2

https://ubuntu.com/security/notices/USN-7179-1

CVE-2020-12351, CVE-2020-12352, CVE-2020-24490, CVE-2024-26822,

CVE-2024-35963, CVE-2024-35965, CVE-2024-35966, CVE-2024-35967,

CVE-2024-38553, CVE-2024-40910, CVE-2024-40973, CVE-2024-43904,

CVE-2024-50264, CVE-2024-53057

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7179-4

Topics%20covered

Topics Covered

security advisory denial of service buffer overflow ubuntu processor security linux kernel bluetooth

Package Information

https://launchpad.net/ubuntu/+source/linux-xilinx-zynqmp/5.15.0-1041.45

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