Detections
Analytics
CVE-2017-7813
high
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.
References
https://www.mozilla.org/security/advisories/mfsa2017-21/
https://bugzilla.mozilla.org/show_bug.cgi?id=1383951