Explore top 10 tips to secure your open-source projects now. Read More

×
Alerts This Week
Warning Icon 1 620
Alerts This Week
Warning Icon 1 620

Ubuntu 18.04 LTS USN-5678-1 Critical: Kernel Fixes and Threats

ubuntu
Calendar Grey October 13, 2022
Dist Ubuntu Esm H88
Several vulnerabilities in the Linux kernel addressed in this Ubuntu notice, improving overall system reliability and reducing potential security threats.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-aws: Linux kernel for Amazon Web Services (AWS) systems

- linux-gcp-4.15: Linux kernel for Google Cloud Platform (GCP) systems

Details:

It was discovered that the SUNRPC RDMA protocol implementation in the Linux

kernel did not properly calculate the header size of a RPC message payload.

A local attacker could use this to expose sensitive information (kernel

memory). (CVE-2022-0812)

Moshe Kol, Amit Klein and Yossi Gilad discovered that the IP implementation

in the Linux kernel did not provide sufficient randomization when

calculating port offsets. An attacker could possibly use this to expose

sensitive information. (CVE-2022-1012, CVE-2022-32296)

Duoming Zhou discovered that race conditions existed in the timer handling

implementation of the Linux kernel's Rose X.25 protocol layer, resulting in

use-after-free vulnerabilities. A local attacker could use this to cause a

den...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory critical DoS Ubuntu information exposure Linux kernel

Update Instructions

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

Ubuntu 18.04 LTS:
   linux-image-4.15.0-1137-gcp     4.15.0-1137.153
   linux-image-4.15.0-1142-aws     4.15.0-1142.154
   linux-image-aws-lts-18.04       4.15.0.1142.142
   linux-image-gcp-lts-18.04       4.15.0.1137.153

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-5678-1

CVE-2022-0812, CVE-2022-1012, CVE-2022-2318, CVE-2022-26365,

CVE-2022-32296, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742,

CVE-2022-33744

Severity
critical
Lowest
Low
Medium
High
Critical

October 13, 2022

Topics%20covered

Topics Covered

security advisory critical DoS Ubuntu information exposure Linux kernel

Package Information

https://launchpad.net/ubuntu/+source/linux-aws/4.15.0-1142.154
https://launchpad.net/ubuntu/+source/linux-gcp-4.15/4.15.0-1137.153

Get the latest News and Insights

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