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Ubuntu 23.10 USN-6707-2 Critical: Linux Kernel Denial Of Service Issues

ubuntu
Calendar Grey March 21, 2024
Dist Ubuntu Esm H88
Numerous vulnerabilities addressed in Ubuntu 23.10 Linux kernel; essential patch needed for optimal system performance.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-laptop: Linux kernel for Lenovo X13s ARM laptops

Details:

Lonial Con discovered that the netfilter subsystem in the Linux kernel did

not properly handle element deactivation in certain cases, 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-2024-1085)

Notselwyn discovered that the netfilter subsystem in the Linux kernel did

not properly handle verdict parameters in certain cases, 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-2024-1086)

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:

- Network drivers;

- PWM driv...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service update critical Ubuntu Linux kernel network drivers

Update Instructions

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

Ubuntu 23.10:
   linux-image-6.5.0-1012-laptop   6.5.0-1012.15
   linux-image-laptop-23.10        6.5.0.1012.15

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-6707-2

https://ubuntu.com/security/notices/USN-6707-1

CVE-2024-1085, CVE-2024-1086, CVE-2024-26597, CVE-2024-26599

Severity
critical
Lowest
Low
Medium
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Critical

Ubuntu Security Notice USN-6707-2

Topics%20covered

Topics Covered

security advisory denial of service update critical Ubuntu Linux kernel network drivers

Package Information

https://launchpad.net/ubuntu/+source/linux-laptop/6.5.0-1012.15

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