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CVE-2017-7813 Inside the JavaScript parser, a cast of an integer to a narrower type can result in data read from outside the buffer…

Description

Inside the JavaScript parser, a cast of an integer to a narrower type can result in data read from outside the buffer being parsed. This usually results in a non-exploitable crash, but can leak a limited amount of information from memory if it matches JavaScript identifier syntax. This vulnerability affects Firefox < 56.

Affected products and versions

Product Affected versions Fixed in
Firefox 56 earliest → < 56 56

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The 2221 CVEs of Firefox →
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