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Ubuntu 6604-2 Security Advisory: Denial of Service and Data Leak Issues

ubuntu
Calendar Grey January 29, 2024
Dist Ubuntu Esm H88
Several vulnerabilities identified in the Linux kernel for Ubuntu (Azure) resolved through updates for version 4.15.0.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-azure-4.15: Linux kernel for Microsoft Azure Cloud systems

- linux-azure: Linux kernel for Microsoft Azure Cloud systems

Details:

It was discovered that the ASUS HID driver in the Linux kernel did not

properly handle device removal, leading to a use-after-free vulnerability.

A local attacker with physical access could plug in a specially crafted USB

device to cause a denial of service (system crash). (CVE-2023-1079)

Jana Hofmann, Emanuele Vannacci, Cedric Fournet, Boris Kopf, and Oleksii

Oleksenko discovered that some AMD processors could leak stale data from

division operations in certain situations. A local attacker could possibly

use this to expose sensitive information. (CVE-2023-20588)

It was discovered that a race condition existed in the Linux kernel when

performing operations with kernel objects, leading to an out-of-bounds

write. A local attacker could use this t...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service software update ubuntu data leak linux kernel azure

Update Instructions

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

Ubuntu 18.04 LTS (Available with Ubuntu Pro):
   linux-image-4.15.0-1173-azure   4.15.0-1173.188
   linux-image-azure-lts-18.04     4.15.0.1173.141

Ubuntu 16.04 LTS (Available with Ubuntu Pro):
   linux-image-4.15.0-1173-azure   4.15.0-1173.188~16.04.1
   linux-image-azure               4.15.0.1173.157

Ubuntu 14.04 LTS (Available with Ubuntu Pro):
   linux-image-4.15.0-1173-azure   4.15.0-1173.188~14.04.1
   linux-image-azure               4.15.0.1173.139

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-6604-2

https://ubuntu.com/security/notices/USN-6604-1

CVE-2023-1079, CVE-2023-20588, CVE-2023-45863, CVE-2023-6606,

CVE-2023-6931, CVE-2023-6932

Severity
critical
Lowest
Low
Medium
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Critical

Ubuntu Security Notice USN-6604-2

Topics%20covered

Topics Covered

security advisory denial of service software update ubuntu data leak linux kernel azure

Package Information

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