First published: Tue Mar 07 2017(Updated: )
If a malicious site repeatedly triggers a modal authentication prompt, eventually the browser UI will become non-responsive, requiring shutdown through the operating system. This is a denial of service (DOS) attack.
Credit: security@mozilla.org
Affected Software | Affected Version | How to fix |
---|---|---|
Firefox | <52 | 52 |
Thunderbird | <52 | 52 |
Firefox | <52.0 | |
Thunderbird | <52.0 |
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(Found alongside the following vulnerabilities)
CVE-2017-5419 is classified as a denial of service (DoS) vulnerability.
To remediate CVE-2017-5419, update your Mozilla Firefox or Thunderbird to version 52.0 or later.
CVE-2017-5419 affects Mozilla Firefox and Thunderbird versions prior to 52.0.
Exploitation of CVE-2017-5419 can lead to the browser or email client becoming non-responsive.
The vendor for CVE-2017-5419 is Mozilla.