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Advisories

vm2 3.11.0 through 3.11.7 Prototype Pollution via TypedArray

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severity
critical
date
Affecting

  • vm2 >= 3.11.0, < 3.11.8

CWE
  • CWE-913 Improper Control of Dynamically-Managed Code Resources
CVSS
9.3
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H
Credit
rexpository
Description
vm2 versions from 3.11.0 before 3.11.8 fail to protect host TypedArray and ArrayBuffer prototypes from sandbox mutation. Attackers can use prototype-walking primitives to reach and modify host Uint8Array.prototype, %TypedArray%.prototype, and ArrayBuffer.prototype, causing host-created typed arrays to observe attacker-controlled properties after VM.run() returns.

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