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The vulnerability was addressed by replacing platform.Map with a custom IntlCache that enforces size limits (PR #6385/commit 7e2c360). The key issue was improper memory buffer management in locale handling - the Map-based cache lacked eviction logic, creating potential for memory corruption through uncontrolled growth. The CWE-119 classification and RCE impact suggest this cache management flaw was the attack surface for memory corruption.
| Package Name | Ecosystem | Vulnerable Versions | First Patched Version |
|---|---|---|---|
| Microsoft.ChakraCore | nuget | < 1.11.17 | 1.11.17 |
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