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JSC JIT Out-Of-Bounds Access
Posted Jun 3, 2020
Authored by saelo, Google Security Research

The DFG and FTL JIT compilers incorrectly replace Checked with Unchecked ArithNegate operations (and vice versa) during Common Subexpression Elimination. This can then be exploited to cause out-of-bounds accesses and potentially other memory safety violations.

tags | exploit
advisories | CVE-2020-9802
SHA-256 | c63474f7958ed7b94d4d7df571792f778fb9ea8a94dac6a55e849f3c5a09d7e2
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