Apple Safari WebKit Incorrect ArithNegate Leads to Out Of Bounds Access

Strike ID:
E20-15ze1
CVSS:
8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
False Positive:
f
Variants:
1
Year:
2020

Description

This strike exploits a vulnerability in Apple Webkit. Specifically, an attacker can craft JavaScript in such a way that Checked and Unchecked ArithNegate operations are incorrectly swapped during Common Subexpression Elimination. This will lead to out-of-bounds memory access on an array after being JIT compiled.

CVE

Google