CVE-2024-27934

CVSS 3.1 Score 8.4 of 10 (high)

Details

Published Mar 21, 2024
CWE ID 416

Summary

CVE-2024-27934 is a critical vulnerability affecting Deno, a JavaScript, TypeScript, and WebAssembly runtime. Versions 1.36.2 and earlier, up to 1.40.2, are impacted. The flaw arises due to the use of inherently unsafe `*const c_void` and `ExternalPointer`, leading to use-after-free access of underlying structures. An attacker can exploit this vulnerability by controlling the code executed within a Deno runtime to execute arbitrary code on the host machine, regardless of permissions. Both `*const c_void` and `ExternalPointer` implementations are susceptible to this issue. Version 1.40.3 has been released to address this vulnerability.

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