Ubuntu Security Notice 3761-1 - 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, or execute arbitrary code. It was discovered that if a user saved passwords before Firefox 58 and then later set a master password, an unencrypted copy of these passwords would still be accessible. A local user could exploit this to obtain sensitive information. Various other issues were also addressed.
5250f9b22135e87b334a076a8fd606b93af51fe81a2760f9e0440c740663d869
==========================================================================
Ubuntu Security Notice USN-3761-1
September 06, 2018
firefox vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
Summary:
Firefox could be made to crash or run programs as your login if it
opened a malicious website.
Software Description:
- firefox: Mozilla Open Source web browser
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, or execute
arbitrary code. (CVE-2018-12375, CVE-2018-12376, CVE-2018-12377,
CVE-2018-12378)
It was discovered that if a user saved passwords before Firefox 58 and
then later set a master password, an unencrypted copy of these passwords
would still be accessible. A local user could exploit this to obtain
sensitive information. (CVE-2018-12383)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 18.04 LTS:
firefox 62.0+build2-0ubuntu0.18.04.3
Ubuntu 16.04 LTS:
firefox 62.0+build2-0ubuntu0.16.04.3
Ubuntu 14.04 LTS:
firefox 62.0+build2-0ubuntu0.14.04.3
After a standard system update you need to restart Firefox to make
all the necessary changes.
References:
https://usn.ubuntu.com/usn/usn-3761-1
CVE-2018-12375, CVE-2018-12376, CVE-2018-12377, CVE-2018-12378,
CVE-2018-12383
Package Information:
https://launchpad.net/ubuntu/+source/firefox/62.0+build2-0ubuntu0.18.04.3
https://launchpad.net/ubuntu/+source/firefox/62.0+build2-0ubuntu0.16.04.3
https://launchpad.net/ubuntu/+source/firefox/62.0+build2-0ubuntu0.14.04.3