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Ubuntu 19.04 LTS: USN-3991-1 Moderate: Firefox Denial Of Service

ubuntu
Calendar Grey May 21, 2019
Dist Ubuntu Esm H88
Numerous security flaws present in Firefox on Ubuntu may result in system crashes or allow rogue applications to run through 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, spoof the browser

UI, trick the user in to launching local executable binaries, obtain

sensitive information, conduct cross-site scripting (XSS) attacks, or

execute arbitrary code. (CVE-2019-11691, CVE-2019-11692, CVE-2019-11693,

CVE-2019-11695, CVE-2019-11696, CVE-2019-11699, CVE-2019-11701,

CVE-2019-7317, CVE-2019-9800, CVE-2019-9814, CVE-2019-9817, CVE-2019-9819,

CVE-2019-9820, CVE-2019-9821)

It was discovered that pressing certain key combinations could bypass

addon installation prompt delays. If a user opened a specially crafted

website, an attacker could potentially exploit this to trick them in ...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu XSS attack Mozilla Firefox malicious code execution

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 19.04:
  firefox                         67.0+build2-0ubuntu0.19.04.1

Ubuntu 18.10:
  firefox                         67.0+build2-0ubuntu0.18.10.1

Ubuntu 18.04 LTS:
  firefox                         67.0+build2-0ubuntu0.18.04.1

Ubuntu 16.04 LTS:
  firefox                         67.0+build2-0ubuntu0.16.04.1

After a standard system update you need to restart Firefox to make
all the necessary changes.

References

  https://ubuntu.com/security/notices/USN-3991-1

  CVE-2019-11691, CVE-2019-11692, CVE-2019-11693, CVE-2019-11695,

  CVE-2019-11696, CVE-2019-11697, CVE-2019-11698, CVE-2019-11699,

  CVE-2019-11701, CVE-2019-7317, CVE-2019-9800, CVE-2019-9814,

  CVE-2019-9816, CVE-2019-9817, CVE-2019-9819, CVE-2019-9820,

  CVE-2019-9821

Severity
important
Lowest
Low
Medium
High
Critical

May 21, 2019

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu XSS attack Mozilla Firefox malicious code execution

Package Information

  https://launchpad.net/ubuntu/+source/firefox/67.0+build2-0ubuntu0.19.04.1
  https://launchpad.net/ubuntu/+source/firefox/67.0+build2-0ubuntu0.18.10.1
  https://launchpad.net/ubuntu/+source/firefox/67.0+build2-0ubuntu0.18.04.1
  https://launchpad.net/ubuntu/+source/firefox/67.0+build2-0ubuntu0.16.04.1

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