USN-3516-1: Firefox vulnerabilities
Ubuntu Security Notice USN-3516-1
5th January, 2018
firefox vulnerabilities
A security issue affects these releases of Ubuntu and its
derivatives:
- Ubuntu 17.10
- Ubuntu 17.04
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
Summary
Firefox could be made to expose sensitive information.
Software description
- firefox
– Mozilla Open Source web browser
Details
It was discovered that speculative execution performed by modern CPUs
could leak information through a timing side-channel attack, and that
this could be exploited in web browser JavaScript engines. If a user were
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,
CVE-2017-5753, CVE-2017-5754).
Update instructions
The problem can be corrected by updating your system to the following
package version:
- Ubuntu 17.10:
-
firefox
57.0.4+build1-0ubuntu0.17.10.1
- Ubuntu 17.04:
-
firefox
57.0.4+build1-0ubuntu0.17.04.1
- Ubuntu 16.04 LTS:
-
firefox
57.0.4+build1-0ubuntu0.16.04.1
- Ubuntu 14.04 LTS:
-
firefox
57.0.4+build1-0ubuntu0.14.04.1
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.
References
Source: USN-3516-1: Firefox vulnerabilities
