CVE-2025-43434
Overview
Advisory: Apple Security Advisory
Impact:
Description: Processing maliciously crafted web content may lead to an unexpected Safari crash
Researchers: Google Big Sleep
| Attribute | Value |
|---|---|
| CVE | CVE-2025-43434 |
| Bugzilla | 297958 |
| Component | JSC |
| Bug Class | UAF |
| Severity | medium |
| Commit | ef9304e0e82bf304… |
| Advisory | Apple Advisory |
Root Cause Analysis
A use-after-free issue was addressed with improved memory management.
Files Changed
Source Files
Source/JavaScriptCore/wasm/WasmGlobal.hSource/JavaScriptCore/wasm/WasmTable.cppSource/JavaScriptCore/wasm/WasmTable.hSource/JavaScriptCore/wasm/WasmTypeDefinition.hSource/JavaScriptCore/wasm/WasmTypeDefinitionInlines.h