Alerts This Week
Warning Icon 1 1,295
Alerts This Week
Warning Icon 1 1,295

Ubuntu 18.04/16.04: USN-6866-2 Critical Security Updates

ubuntu
Calendar Grey July 4, 2024
Dist Ubuntu Esm H88
Addressed multiple core problems in Ubuntu versions 20.04 and 18.04 LTS to avert possible operating system failures.
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 ext4 file system implementation in the Linux

kernel did not properly validate data state on write operations. An

attacker could use this to construct a malicious ext4 file system image

that, when mounted, could cause a denial of service (system crash).

(CVE-2021-33631)

It was discovered that the ATA over Ethernet (AoE) driver in the Linux

kernel contained a race condition, leading to a use-after-free

vulnerability. An attacker could use this to cause a denial of service or

possibly execute arbitrary code. (CVE-2023-6270)

Sander Wiebing, Alvise de Faveri Tron, Herbert Bos, and Cristiano Giuffrida

discovered that the Linux kernel mitigations for the initial Branch History

Injection vulnerability (CVE-2022-0001) were in...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu critical threat system update kernel issues linux-azure

Update Instructions

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

Ubuntu 18.04 LTS
   linux-image-4.15.0-1178-azure   4.15.0-1178.193
                                   Available with Ubuntu Pro
   linux-image-azure-lts-18.04     4.15.0.1178.146
                                   Available with Ubuntu Pro

Ubuntu 16.04 LTS
   linux-image-4.15.0-1178-azure   4.15.0-1178.193~16.04.1
                                   Available with Ubuntu Pro
   linux-image-azure               4.15.0.1178.193~16.04.1
                                   Available with Ubuntu Pro

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-6866-2

https://ubuntu.com/security/notices/USN-6866-1

CVE-2021-33631, CVE-2021-47063, CVE-2023-52615, CVE-2023-6270,

CVE-2024-2201, CVE-2024-23307, CVE-2024-24861, CVE-2024-26642,

CVE-2024-26720, CVE-2024-26736, CVE-2024-26898, CVE-2024-26922

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-6866-2

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu critical threat system update kernel issues linux-azure

Package Information

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Your message here