CVE-2017-5387

Description

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 "<track>" tag refers to a file that does not exist if the source page is loaded locally. This vulnerability affects Firefox < 51.

Weakness classification

• CWE-538: Insertion of Sensitive Information into Externally-Accessible File or Directory

Primary references

• security@mozilla.org — Third Party Advisory, VDB Entry
• security@mozilla.org — Third Party Advisory, VDB Entry
• security@mozilla.org — Exploit, Issue Tracking
• security@mozilla.org — Vendor Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory, VDB Entry
• af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory, VDB Entry
• af854a3a-2127-422b-91ae-364da2661108 — Exploit, Issue Tracking
• af854a3a-2127-422b-91ae-364da2661108 — Vendor Advisory