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Ubuntu 20.04 and 18.04: USN-6681-3 Moderate: Kernel DoS Issues

ubuntu
Calendar Grey March 13, 2024
Dist Ubuntu Esm H88
Addresses vulnerabilities present in the Ubuntu kernel, targeting potential denial-of-service threats and the risk of exposing confidential information.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-ibm: Linux kernel for IBM cloud systems

- linux-oracle: Linux kernel for Oracle Cloud systems

- linux-ibm-5.4: Linux kernel for IBM cloud systems

- linux-oracle-5.4: Linux kernel for Oracle Cloud systems

Details:

Wenqing Liu discovered that the f2fs file system implementation in the

Linux kernel did not properly validate inode types while performing garbage

collection. An attacker could use this to construct a malicious f2fs image

that, when mounted and operated on, could cause a denial of service (system

crash). (CVE-2021-44879)

It was discovered that the DesignWare USB3 for Qualcomm SoCs driver in the

Linux kernel did not properly handle certain error conditions during device

registration. A local attacker could possibly use this to cause a denial of

service (system crash). (CVE-2023-22995)

Bien Pham discovered that the netfiler subsystem in the Linux kernel

contained...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service kernel fix ubuntu sensitive data exposure

Update Instructions

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

Ubuntu 20.04 LTS:
   linux-image-5.4.0-1067-ibm      5.4.0-1067.72
   linux-image-5.4.0-1119-oracle   5.4.0-1119.128
   linux-image-ibm-lts-20.04       5.4.0.1067.96
   linux-image-oracle-lts-20.04    5.4.0.1119.112

Ubuntu 18.04 LTS (Available with Ubuntu Pro):
   linux-image-5.4.0-1067-ibm      5.4.0-1067.72~18.04.1
   linux-image-5.4.0-1119-oracle   5.4.0-1119.128~18.04.1
   linux-image-ibm                 5.4.0.1067.77
   linux-image-oracle              5.4.0.1119.128~18.04.91

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-6681-3

https://ubuntu.com/security/notices/USN-6681-1

CVE-2021-44879, CVE-2023-22995, CVE-2023-4244, CVE-2023-51779,

CVE-2023-51780, CVE-2023-51782, CVE-2023-6121, CVE-2024-0340

Ubuntu Security Notice USN-6681-3

Topics%20covered

Topics Covered

security advisory denial of service kernel fix ubuntu sensitive data exposure

Package Information

https://launchpad.net/ubuntu/+source/linux-ibm/5.4.0-1067.72
https://launchpad.net/ubuntu/+source/linux-oracle/5.4.0-1119.128

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