Avoid calls to 'buffer' with 'noAssert' flag set

문서 > Datadog 보안 > Code Security > Static Code Analysis (SAST) > SAST Rules > Avoid calls to 'buffer' with 'noAssert' flag set

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Metadata

ID: javascript-node-security/detect-buffer-noassert

Language: JavaScript

Severity: Error

Category: Security

Description

Avoid calls to buffer with noAssert. If you skip the offset validation it can go beyond the end of the Buffer.

Non-Compliant Code Examples

a.readUInt8(0, true)
a.readUInt16LE(0, true)
a.readUInt16BE(0, true)
a.readUInt32LE(0, true)
a.readUInt32BE(0, true)
a.readInt8(0, true)
a.readInt16LE(0, true)
a.readInt16BE(0, true)
a.readInt32LE(0, true)
a.readInt32BE(0, true)
a.readFloatLE(0, true)
a.readFloatBE(0, true)
a.readDoubleLE(0, true)
a.readDoubleBE(0, true)
a.writeUInt8(0, 0, true)
a.writeUInt16LE(0, 0, true)
a.writeUInt16BE(0, 0, true)
a.writeUInt32LE(0, 0, true)
a.writeUInt32BE(0, 0, true)
a.writeInt8(0, 0, true)
a.writeInt16LE(0, 0, true)
a.writeInt16BE(0, 0, true)
a.writeInt32LE(0, 0, true)
a.writeInt32BE(0, 0, true)
a.writeFloatLE(0, 0, true)
a.writeFloatBE(0, 0, true)
a.writeDoubleLE(0, 0, true)
a.writeDoubleBE(0, 0, true)

Compliant Code Examples

a.readUInt8(0)
a.readUInt16LE(0)
a.readUInt16BE(0)
a.readUInt32LE(0)
a.readUInt32BE(0)
a.readInt8(0)
a.readInt16LE(0)
a.readInt16BE(0)
a.readInt32LE(0)
a.readInt32BE(0)
a.readFloatLE(0)
a.readFloatBE(0)
a.readDoubleLE(0)
a.readDoubleBE(0)
a.writeUInt8(0)
a.writeUInt16LE(0)
a.writeUInt16BE(0)
a.writeUInt32LE(0)
a.writeUInt32BE(0)
a.writeInt8(0)
a.writeInt16LE(0)
a.writeInt16BE(0)
a.writeInt32LE(0)
a.writeInt32BE(0)
a.writeFloatLE(0)
a.writeFloatBE(0)
a.writeDoubleLE(0)
a.writeDoubleBE(0)
a.readUInt8(0, false)
a.readUInt16LE(0, false)
a.readUInt16BE(0, false)
a.readUInt32LE(0, false)
a.readUInt32BE(0, false)
a.readInt8(0, false)
a.readInt16LE(0, false)
a.readInt16BE(0, false)
a.readInt32LE(0, false)
a.readInt32BE(0, false)
a.readFloatLE(0, false)
a.readFloatBE(0, false)
a.readDoubleLE(0, false)
a.readDoubleBE(0, false)
a.writeUInt8(0, false)
a.writeUInt16LE(0, false)
a.writeUInt16BE(0, false)
a.writeUInt32LE(0, false)
a.writeUInt32BE(0, false)
a.writeInt8(0, false)
a.writeInt16LE(0, false)
a.writeInt16BE(0, false)
a.writeInt32LE(0, false)
a.writeInt32BE(0, false)
a.writeFloatLE(0, false)
a.writeFloatBE(0, false)
a.writeDoubleLE(0, false)
a.writeDoubleBE(0, false)