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

×
Alerts This Week
Warning Icon 1 538
Alerts This Week
Warning Icon 1 538

Ubuntu: 4096-1 Moderate: Linux Kernel AWS Info Exposure

ubuntu
Calendar Grey August 13, 2019
Dist Ubuntu Esm H88
The Ubuntu Security Notice USN-4096-1 highlights a vulnerability in linux-aws that may lead to the exposure of confidential information, necessitating immediate system updates.
The system could be made to expose sensitive information.

Summary

The system could be made to expose sensitive information.

Software Description:

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

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

Details:

Andrei Vlad Lutas and Dan Lutas discovered that some x86 processorsincorrectly handle SWAPGS instructions during speculative execution. A

local attacker could use this to expose sensitive information (kernel

memory).

Topics%20covered

Topics Covered

security advisory software update information exposure ubuntu linux kernel linux-aws aws

Update Instructions

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

Ubuntu 19.04:
  linux-image-5.0.0-1012-aws      5.0.0-1012.13
  linux-image-aws                 5.0.0.1012.12

Ubuntu 18.04 LTS:
  linux-image-4.15.0-1045-aws     4.15.0-1045.47
  linux-image-aws                 4.15.0.1045.44

Ubuntu 16.04 LTS:
  linux-image-4.15.0-1045-aws     4.15.0-1045.47~16.04.1
  linux-image-aws-hwe             4.15.0.1045.45

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-4096-1

CVE-2019-1125

Severity
important
Lowest
Low
Medium
High
Critical

August 13, 2019

Topics%20covered

Topics Covered

security advisory software update information exposure ubuntu linux kernel linux-aws aws

Package Information

https://launchpad.net/ubuntu/+source/linux-aws/5.0.0-1012.13
https://launchpad.net/ubuntu/+source/linux-aws/4.15.0-1045.47
https://launchpad.net/ubuntu/+source/linux-aws-hwe/4.15.0-1045.47~16.04.1

Get the latest News and Insights

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