Type Confusion Exploit in JavaScript Register Allocation: Remote Code Execution in Firefox ESR < 60.2.2 and Firefox < 62.0.3

Type Confusion Exploit in JavaScript Register Allocation: Remote Code Execution in Firefox ESR < 60.2.2 and Firefox < 62.0.3

CVE-2018-12386 · MEDIUM Severity

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

A vulnerability in register allocation in JavaScript can lead to type confusion, allowing for an arbitrary read and write. This leads to remote code execution inside the sandboxed content process when triggered. This vulnerability affects Firefox ESR < 60.2.2 and Firefox < 62.0.3.

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