CVE-2017-5419

CVE-2017-5419

EPSS 2.4%

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. This vulnerability affects Firefox < 52 and Thunderbird < 52.

Affected products

Mozilla · Firefox Mozilla · Thunderbird

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References

https://bugzilla.mozilla.org/show_bug.cgi?id=1312243 https://www.mozilla.org/security/advisories/mfsa2017-05/https://www.mozilla.org/security/advisories/mfsa2017-09/http://www.securityfocus.com/bid/96692 http://www.securitytracker.com/id/1037966