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Ubuntu 22.04 LTS: USN-6608-2 Critical: Denial of Service Issues

ubuntu
Calendar Grey February 14, 2024
Dist Ubuntu Esm H88
A number of vulnerabilities have been resolved in Ubuntu 22.04 LTS featuring the linux-nvidia-6.2 kernel. Essential patches are now available.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-nvidia-6.2: Linux kernel for NVIDIA systems

Details:

It was discovered that the CIFS network file system implementation in the

Linux kernel did not properly validate the server frame size in certain

situation, leading to an out-of-bounds read vulnerability. An attacker

could use this to construct a malicious CIFS image that, when operated on,

could cause a denial of service (system crash) or possibly expose sensitive

information. (CVE-2023-6606)

Xingyuan Mo discovered that the netfilter subsystem in the Linux kernel did

not properly handle inactive elements in its PIPAPO data structure, 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-2023-6817)

Budimir Markovic, Lucas De Marchi, and Pengfei Xu discovered that the perf

subsystem in the Linux kernel did not properly validate all event...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service kernel update ubuntu cifs issue linux nvidia

Update Instructions

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

Ubuntu 22.04 LTS:
  linux-image-6.2.0-1015-nvidia   6.2.0-1015.15
  linux-image-6.2.0-1015-nvidia-64k  6.2.0-1015.15
  linux-image-nvidia-6.2          6.2.0.1015.17
  linux-image-nvidia-64k-6.2      6.2.0.1015.17
  linux-image-nvidia-64k-hwe-22.04  6.2.0.1015.17
  linux-image-nvidia-hwe-22.04    6.2.0.1015.17

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-6608-2

https://ubuntu.com/security/notices/USN-6608-1

CVE-2023-6606, CVE-2023-6817, CVE-2023-6931, CVE-2023-6932,

CVE-2024-0193

Severity
critical
Lowest
Low
Medium
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Critical

Ubuntu Security Notice USN-6608-2

Topics%20covered

Topics Covered

security advisory denial of service kernel update ubuntu cifs issue linux nvidia

Package Information

https://launchpad.net/ubuntu/+source/linux-nvidia-6.2/6.2.0-1015.15

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