CVE-2017-5387 in Firefox

Summary

The existence of a specifically requested local file can be found due to the double firing of the "onerror" when the "source" attribute on a "" tag refers to a file that does not exist if the source page is loaded locally. This vulnerability affects Firefox < 51.

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• Reservation: 01/13/2017
• Disclosure: 06/11/2018
• Moderation: VulDB entry created
• Entries: VDB-96023 (1)
• CPE: ready
• CWE: CWE-538 (Confirmed)
• CVSS: 3.8
• EPSS: 0.00126
• Activities: Very Low

Sources

• MITRE: https://www.cve.org/CVERecord?id=CVE-2017-5387
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-5387
• CVE Details: https://www.cvedetails.com/cve/CVE-2017-5387/