Saturday, April 2, 2022

Ubuntu Security Notice USN-5357-2

Ubuntu Security Notice USN-5357-2
March 31, 2022

linux-aws-hwe, linux-gcp-4.15, linux-oracle vulnerability
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 18.04 LTS
- Ubuntu 16.04 ESM


The system could be made to crash or run programs as an administrator.

Software Description:
- linux-gcp-4.15: Linux kernel for Google Cloud Platform (GCP) systems
- linux-oracle: Linux kernel for Oracle Cloud systems
- linux-aws-hwe: Linux kernel for Amazon Web Services (AWS-HWE) systems


It was discovered that the IPsec implementation in the Linux
kernel did not properly allocate enough memory when performing ESP
transformations, leading to a heap-based buffer overflow. A local
attacker could use this to cause a denial of service (system crash)
or possibly execute arbitrary code.

Update instructions:

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

Ubuntu 18.04 LTS:
linux-image-4.15.0-1091-oracle 4.15.0-1091.100
linux-image-4.15.0-1120-gcp 4.15.0-1120.134

Ubuntu 16.04 ESM:
linux-image-4.15.0-1091-oracle 4.15.0-1091.100~16.04.1
linux-image-4.15.0-1126-aws-hwe 4.15.0-1126.135~16.04.2

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.


Package Information:

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thank you Templateism for the design - You should have written the code a little more complicated - Nothing Encrypted anymore