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Ubuntu 20.04 LTS USN-5859-1 Critical: Linux Kernel Safety Issues

ubuntu
Calendar Grey February 9, 2023
Dist Ubuntu Esm H88
Ubuntu's USN-5859-1 tackles urgent vulnerabilities in the Linux kernel that threaten system stability and security, prompting users to update immediately for protection
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-oem-5.14: Linux kernel for OEM systems

Details:

Davide Ornaghi discovered that the netfilter subsystem in the Linux kernel

did not properly handle VLAN headers in some situations. A local attacker

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

execute arbitrary code. (CVE-2023-0179)

It was discovered that the Netronome Ethernet driver in the Linux kernel

contained 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-2022-3545)

It was discovered that the Intel i915 graphics driver in the Linux kernel

did not perform a GPU TLB flush in some situations. A local attacker could

use this to cause a denial of service or possibly execute arbitrary code.

(CVE-2022-4139)

Tamás Koczka discovered that the Bluetooth L2CAP implementation in the

Linux kernel did n...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service remote exploit critical update ubuntu system crash linux-oem-5.14

Update Instructions

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

Ubuntu 20.04 LTS:
   linux-image-5.14.0-1057-oem     5.14.0-1057.64
   linux-image-oem-20.04           5.14.0.1057.55
   linux-image-oem-20.04b          5.14.0.1057.55
   linux-image-oem-20.04c          5.14.0.1057.55
   linux-image-oem-20.04d          5.14.0.1057.55

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-5859-1

CVE-2022-3545, CVE-2022-4139, CVE-2022-42895, CVE-2023-0179

Severity
critical
Lowest
Low
Medium
High
Critical

February 09, 2023

Topics%20covered

Topics Covered

security advisory denial of service remote exploit critical update ubuntu system crash linux-oem-5.14

Package Information

https://launchpad.net/ubuntu/+source/linux-oem-5.14/5.14.0-1057.64

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