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AUSCERT External Security Bulletin Redistribution
ESB-2020.1612
USN-4351-1: Linux firmware vulnerability
7 May 2020
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AusCERT Security Bulletin Summary
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Product: Linux Kernel
Publisher: Ubuntu
Operating System: Ubuntu
Impact/Access: Access Confidential Data -- Console/Physical
Resolution: Patch/Upgrade
CVE Names: CVE-2018-5383
Reference: ASB-2018.0190
ESB-2019.2932
ESB-2019.1111
Original Bulletin:
https://usn.ubuntu.com/4351-1/
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USN-4351-1: Linux firmware vulnerability
6 May 2020
linux-firmware vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
o Ubuntu 18.04 LTS
o Ubuntu 16.04 LTS
Summary
The system could be made to expose sensitive information.
Software Description
o linux-firmware - Firmware for Linux kernel drivers
Details
Eli Biham and Lior Neumann discovered that certain Bluetooth devices
incorrectly validated key exchange parameters. An attacker could possibly use
this issue to obtain sensitive information.
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 18.04 LTS
linux-firmware - 1.173.18
Ubuntu 16.04 LTS
linux-firmware - 1.157.23
To update your system, please follow these instructions: https://
wiki.ubuntu.com/Security/Upgrades .
After a standard system update you need to reboot your computer to make all the
necessary changes.
References
o CVE-2018-5383
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The University of Queensland
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