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Ubuntu 22.04 LTS USN-6688-1 Critical: Linux Kernel OEM Issues

ubuntu
Calendar Grey March 11, 2024
Dist Ubuntu Esm H88
Rectifies multiple vulnerabilities in the Linux kernel of Ubuntu 22.04 LTS, tackling both local and remote exploitation opportunities.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-oem-6.1: Linux kernel for OEM systems

Details:

Pratyush Yadav discovered that the Xen network backend implementation in

the Linux kernel did not properly handle zero length data request, leading

to a null pointer dereference vulnerability. An attacker in a guest VM

could possibly use this to cause a denial of service (host domain crash).

(CVE-2023-46838)

It was discovered that the Habana's AI Processors driver in the Linux

kernel did not properly initialize certain data structures before passing

them to user space. A local attacker could use this to expose sensitive

information (kernel memory). (CVE-2023-50431)

Murray McAllister discovered that the VMware Virtual GPU DRM driver in the

Linux kernel did not properly handle memory objects when storing surfaces,

leading to a use-after-free vulnerability. A local attacker in a guest VM

could use this to cause a denial of serv...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service critical local attack ubuntu linux kernel oem

Update Instructions

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

Ubuntu 22.04 LTS:
   linux-image-6.1.0-1035-oem      6.1.0-1035.35
   linux-image-oem-22.04           6.1.0.1035.36
   linux-image-oem-22.04a          6.1.0.1035.36
   linux-image-oem-22.04b          6.1.0.1035.36
   linux-image-oem-22.04c          6.1.0.1035.36

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-6688-1

CVE-2023-46838, CVE-2023-50431, CVE-2023-52436, CVE-2023-52438,

CVE-2023-52439, CVE-2023-52443, CVE-2023-52444, CVE-2023-52445,

CVE-2023-52447, CVE-2023-52448, CVE-2023-52449, CVE-2023-52451,

CVE-2023-52454, CVE-2023-52456, CVE-2023-52457, CVE-2023-52458,

CVE-2023-52462, CVE-2023-52463, CVE-2023-52464, CVE-2023-52467,

CVE-2023-52469, CVE-2023-52470, CVE-2023-52583, CVE-2023-52584,

CVE-2023-52587, CVE-2023-52588, CVE-2023-52589, CVE-2023-52593,

CVE-2023-52594, CVE-2023-52595, CVE-2023-52597, CVE-2023-52598,

CVE-2023-52599, CVE-2023-52600, CVE-2023-52601, CVE-2023-52602,

CVE-2023-52603, CVE-2023-52604, CVE-2023-52605, CVE-2023-52606,

CVE-2023-52607, CVE-2023-5633, CVE-2023-6610, CVE-2024-0340,

CVE-2024-1085, CVE-2024-1086, CVE-2024-23849, CVE-2024-24860,

CVE-2024-26581, CVE-2024-26588, CVE-2024-26589, CVE-2024-26591,

CVE-2024-26592, CVE-2024-26594, CVE-2024-26597, CVE-2024-26598,

CVE-2024-26599, CVE-2024-26600, CVE-2024-26601, CVE-2024-26624,

CVE-2024-26625, CVE-2024-26627, CVE-2024-26628

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-6688-1

Topics%20covered

Topics Covered

security advisory denial of service critical local attack ubuntu linux kernel oem

Package Information

https://launchpad.net/ubuntu/+source/linux-oem-6.1/6.1.0-1035.35

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