USN-3801-2: Firefox regressions
firefox regressions
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 18.10
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
Summary
USN-3801-1 caused some minor regressions in Firefox.
Software Description
- firefox – Mozilla Open Source web browser
Details
USN-3801-1 fixed vulnerabilities in Firefox. The update introduced various
minor regressions. This update fixes the problems.
We apologize for the inconvenience.
Original advisory details:
Multiple security issues were discovered in Firefox. If a user were
tricked in to opening a specially crafted website, an attacker could
potentially exploit these to cause a denial of service, bypass CSP
restrictions, spoof the protocol registration notification bar, leak
SameSite cookies, bypass mixed content warnings, or execute arbitrary
code. (CVE-2018-12388, CVE-2018-12390, CVE-2018-12392, CVE-2018-12393,
CVE-2018-12398, CVE-2018-12399, CVE-2018-12401, CVE-2018-12402,
CVE-2018-12403)
Multiple security issues were discovered with WebExtensions in Firefox.
If a user were tricked in to installing a specially crafted extension, an
attacker could potentially exploit these to bypass domain restrictions,
gain additional privileges, or run content scripts in local pages without
permission. (CVE-2018-12395, CVE-2018-12396, CVE-2018-12397)
Update instructions
The problem can be corrected by updating your system to the following package versions:
- Ubuntu 18.10
- firefox – 63.0.3+build1-0ubuntu0.18.10.1
- Ubuntu 18.04 LTS
- firefox – 63.0.3+build1-0ubuntu0.18.04.1
- Ubuntu 16.04 LTS
- firefox – 63.0.3+build1-0ubuntu0.16.04.1
- Ubuntu 14.04 LTS
- firefox – 63.0.3+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-3801-2: Firefox regressions
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