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Ubuntu 22.04 LTS USN-6174-1 Critical: Linux Kernel Denial Of Service

ubuntu
Calendar Grey June 16, 2023
Dist Ubuntu Esm H88
Numerous vulnerabilities in the Linux kernel have been addressed in Ubuntu 22.04 LTS. Ensure you update to safeguard against potential crashes.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

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

Details:

Jordy Zomer and Alexandra Sandulescu discovered that the Linux kernel did

not properly implement speculative execution barriers in usercopy functions

in certain situations. A local attacker could use this to expose sensitive

information (kernel memory). (CVE-2023-0459)

It was discovered that the Human Interface Device (HID) support driver in

the Linux kernel contained a type confusion vulnerability in some

situations. A local attacker could use this to cause a denial of service

(system crash). (CVE-2023-1073)

It was discovered that the NTFS file system implementation in the Linux

kernel did not properly handle a loop termination condition, leading to an

out-of-bounds read vulnerability. A local attacker could use this to cause

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

information. (CVE-2023-26606)

Topics%20covered

Topics Covered

security advisory denial of service critical fix kernel ubuntu

Update Instructions

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

Ubuntu 22.04 LTS:
   linux-image-5.17.0-1033-oem     5.17.0-1033.34
   linux-image-oem-22.04           5.17.0.1033.31
   linux-image-oem-22.04a          5.17.0.1033.31

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-6174-1

CVE-2023-0459, CVE-2023-1073, CVE-2023-26606

Severity
critical
Lowest
Low
Medium
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Critical

June 16, 2023

Topics%20covered

Topics Covered

security advisory denial of service critical fix kernel ubuntu

Package Information

https://launchpad.net/ubuntu/+source/linux-oem-5.17/5.17.0-1033.34

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