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 16.04 ESM: 5695-1 Moderate: Linux-GCP Kernel Issues Report

ubuntu
Calendar Grey October 21, 2022
Dist Ubuntu Esm H88
Numerous security flaws in linux-gcp for Ubuntu 16.04 ESM addressed. Upgrade immediately to bolster system protection.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-gcp: 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

denial of service (system crash). (CVE-2022-2318)

Roger Pau Monné dis...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory moderate denial of service information exposure ubuntu kernel issues linux-gcp

Update Instructions

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

Ubuntu 16.04 ESM:
   linux-image-4.15.0-1137-gcp     4.15.0-1137.153~16.04.1
   linux-image-gcp                 4.15.0.1137.131
   linux-image-gke                 4.15.0.1137.131

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-5695-1

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

October 21, 2022

Topics%20covered

Topics Covered

security advisory moderate denial of service information exposure ubuntu kernel issues linux-gcp

Package Information

Get the latest News and Insights

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