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AUSCERT External Security Bulletin Redistribution
Firefox on Ubuntu patched for Spectre & Meltdown
8 January 2018
AusCERT Security Bulletin Summary
Operating System: Ubuntu
Impact/Access: Access Privileged Data -- Remote with User Interaction
CVE Names: CVE-2017-5754 CVE-2017-5753 CVE-2017-5715
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Ubuntu Security Notice USN-3516-1
5th January, 2018
A security issue affects these releases of Ubuntu and its derivatives:
Ubuntu 16.04 LTS
Ubuntu 14.04 LTS
Firefox could be made to expose sensitive information.
firefox - Mozilla Open Source web browser
It was discovered that speculative execution performed by modern CPUs
could leak information through a timing side-channel attack, and that
tricked in to opening a specially crafted website, an attacker could
potentially exploit this to obtain sensitive information from other
domains, bypassing same-origin restrictions. (CVE-2017-5715,
The problem can be corrected by updating your system to the following package version:
Ubuntu 16.04 LTS:
Ubuntu 14.04 LTS:
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
After a standard system update you need to restart Firefox to make
all the necessary changes.
CVE-2017-5715, CVE-2017-5753, CVE-2017-5754
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