Denial of Service Vulnerability in Firefox < 55 due to Long User Name in URL

CVE-2017-7783 · MEDIUM Severity

AV:N/AC:L/AU:N/C:N/I:N/A:P

If a long user name is used in a username/password combination in a site URL (such as " http://UserName:Password@example.com"), the resulting modal prompt will hang in a non-responsive state or crash, causing a denial of service. This vulnerability affects Firefox < 55.

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