adm-zip 0.2.1

Direct Vulnerabilities

Known vulnerabilities in the adm-zip package. This does not include vulnerabilities belonging to this package’s dependencies.

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Vulnerability	Vulnerable Version
H Memory Allocation with Excessive Size Value adm-zip is a JavaScript implementation for zip data compression for NodeJS. Affected versions of this package are vulnerable to Memory Allocation with Excessive Size Value via the async decompression path in `methods/inflater.js`, where the decompression size cap enforced by zlib's `maxOutputLength` option is not applied to the streaming API. An attacker can supply a zip archive whose entries declare a small or zero uncompressed size but contain a large compressed payload (a decompression bomb), causing unbounded memory growth and a crash of the host process. Additionally, a declared size of 0 previously disabled the cap entirely on the synchronous path, allowing the same class of attack through entries that lie about their size. How to fix Memory Allocation with Excessive Size Value? Upgrade `adm-zip` to version 0.6.1 or higher.	<0.6.1
H Improper Handling of Highly Compressed Data (Data Amplification) adm-zip is a JavaScript implementation for zip data compression for NodeJS. Affected versions of this package are vulnerable to Improper Handling of Highly Compressed Data (Data Amplification) via the `inflater` process. An attacker can exhaust system memory and disrupt service availability by submitting specially crafted ZIP archives with highly compressible entries that declare a zero uncompressed size. How to fix Improper Handling of Highly Compressed Data (Data Amplification)? Upgrade `adm-zip` to version 0.6.1 or higher.	<0.6.1
H Allocation of Resources Without Limits or Throttling adm-zip is a JavaScript implementation for zip data compression for NodeJS. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in `zipEntry.js` and `entryHeader.js`, which size a `Buffer.alloc()` call directly from the uncompressed-size field of a ZIP central directory header without validating it. An attacker can crash the process with an out-of-memory condition by supplying a small ZIP file, around 120 bytes, whose header declares a roughly 4 GB uncompressed size, triggering the oversized allocation before any CRC check. How to fix Allocation of Resources Without Limits or Throttling? Upgrade `adm-zip` to version 0.5.18 or higher.	<0.5.18
H Directory Traversal adm-zip is a JavaScript implementation for zip data compression for NodeJS. Affected versions of this package are vulnerable to Directory Traversal. It could extract files outside the target folder. How to fix Directory Traversal? Upgrade `adm-zip` to version 0.5.2 or higher.	<0.5.2
C Arbitrary File Write via Archive Extraction (Zip Slip) adm-zip is a JavaScript implementation for zip data compression for NodeJS. Affected versions of this package are vulnerable to Arbitrary File Write via Archive Extraction (Zip Slip). How to fix Arbitrary File Write via Archive Extraction (Zip Slip)? Upgrade `adm-zip` to version 0.4.11 or higher.	<0.4.11

Vulnerability

Vulnerable Version

Memory Allocation with Excessive Size Value