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Ubuntu 18.04 LTS USN-3761-1 Moderate: Firefox Code Execution Threat

ubuntu
Calendar Grey September 6, 2018
Dist Ubuntu Esm H88
Explore the Ubuntu security advisory 3761-1 regarding vulnerabilities in Firefox that may leave users susceptible to threats from harmful websites.
Firefox could be made to crash or run programs as your login if it opened a malicious website.

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)

Topics%20covered

Topics Covered

security advisory denial of service code execution Ubuntu Firefox malicious site

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://ubuntu.com/security/notices/USN-3761-1

CVE-2018-12375, CVE-2018-12376, CVE-2018-12377, CVE-2018-12378,

CVE-2018-12383

Severity
important
Lowest
Low
Medium
High
Critical

September 06, 2018

Topics%20covered

Topics Covered

security advisory denial of service code execution Ubuntu Firefox malicious site

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

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