Executive Summary

Summary
Title Linux kernel vulnerability
Informations
NameUSN-4253-1First vendor Publication2020-01-28
VendorUbuntuLast vendor Modification2020-01-28
Severity (Vendor) N/ARevisionN/A

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base ScoreN/AAttack RangeN/A
Cvss Impact ScoreN/AAttack ComplexityN/A
Cvss Expoit ScoreN/AAuthenticationN/A
Calculate full CVSS 2.0 Vectors scores

Detail

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 19.10

Summary:

The Linux kernel could be made to expose sensitive information.

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

Details:

It was discovered that the Linux kernel did not properly clear data structures on context switches for certain Intel graphics processors. A local attacker could use this to expose sensitive information.

Update instructions:

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

Ubuntu 19.10:
linux-image-5.3.0-1010-aws 5.3.0-1010.11
linux-image-5.3.0-29-generic 5.3.0-29.31
linux-image-5.3.0-29-generic-lpae 5.3.0-29.31
linux-image-5.3.0-29-lowlatency 5.3.0-29.31
linux-image-5.3.0-29-snapdragon 5.3.0-29.31
linux-image-aws 5.3.0.1010.12
linux-image-generic 5.3.0.29.33
linux-image-generic-lpae 5.3.0.29.33
linux-image-lowlatency 5.3.0.29.33
linux-image-virtual 5.3.0.29.33

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://usn.ubuntu.com/4253-1
CVE-2019-14615

Package Information:
https://launchpad.net/ubuntu/+source/linux/5.3.0-29.31
https://launchpad.net/ubuntu/+source/linux-aws/5.3.0-1010.11

Original Source

Url : http://www.ubuntu.com/usn/USN-4253-1

Alert History

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0
DateInformations
2020-01-28 05:19:11
  • First insertion