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Ubuntu 22.04 LTS USN-5783-1 Moderate Denial Of Service Issue

ubuntu
Calendar Grey December 16, 2022
Dist Ubuntu Esm H88
The Ubuntu Security Notice USN-5784-1 highlights a vulnerability within the kernel that may allow unauthorized administrator privileges or potentially lead to system instability.
The system could be made to crash or run programs as an administrator.

Summary

The system could be made to crash or run programs as an administrator.

Software Description:

- linux-oem-5.17: Linux kernel for OEM systems

Details:

Tamás Koczka discovered that the Bluetooth L2CAP handshake implementation

in the Linux kernel contained multiple use-after-free vulnerabilities. A

physically proximate attacker could use this to cause a denial of service

(system crash) or possibly execute arbitrary code.

Update Instructions

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

Ubuntu 22.04 LTS:
   linux-image-5.17.0-1025-oem     5.17.0-1025.26
   linux-image-oem-22.04           5.17.0.1025.23
   linux-image-oem-22.04a          5.17.0.1025.23

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

CVE-2022-42896

December 16, 2022

Package Information

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