Vulnerabilities

2 via 2 paths

Dependencies

422

Source

GitHub

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Severity
  • 1
  • 1
Status
  • 2
  • 0
  • 0

high severity
new

Inefficient Algorithmic Complexity

  • Vulnerable module: js-yaml
  • Introduced through: @nestjs/swagger@11.4.6

Detailed paths

  • Introduced through: @tresdoce-nestjs-toolkit/root@tresdoce/tresdoce-nestjs-toolkit @nestjs/swagger@11.4.6 js-yaml@5.2.1

Overview

js-yaml is a human-friendly data serialization language.

Affected versions of this package are vulnerable to Inefficient Algorithmic Complexity in the readFlowCollection function of parser.ts, which reaches exponential time when a flow sequence entry turns out to be a key: value pair and the parser rewinds to parse that entry a second time as the key. An attacker can exhaust CPU and block the Node event loop by supplying a small YAML document, under 200 bytes, with deeply nested flow sequences of key: value entries, since the re-parsing makes the work grow as O(2^n) in nesting depth. Exploitation occurs under the default configuration when the application parses untrusted YAML with load() or loadAll(), and needs no special schema, anchors, aliases, or merge keys.

Remediation

Upgrade js-yaml to version 5.2.2 or higher.

References

medium severity

Improper Validation of Specified Index, Position, or Offset in Input

  • Vulnerable module: uuid
  • Introduced through: dynamoose-logger@4.2.0

Detailed paths

  • Introduced through: @tresdoce-nestjs-toolkit/root@tresdoce/tresdoce-nestjs-toolkit dynamoose-logger@4.2.0 uuid@9.0.1

Overview

uuid is a RFC4122 (v1, v4, and v5) compliant UUID library.

Affected versions of this package are vulnerable to Improper Validation of Specified Index, Position, or Offset in Input due to accepting external output buffers but not rejecting out-of-range writes (small buf or large offset). This inconsistency allows silent partial writes into caller-provided buffers.

PoC

cd /home/StrawHat/uuid
npm ci
npm run build

node --input-type=module -e "
import {v4,v5,v6} from './dist-node/index.js';
const ns='6ba7b810-9dad-11d1-80b4-00c04fd430c8';
for (const [name,fn] of [
  ['v4',()=>v4({},new Uint8Array(8),4)],
  ['v5',()=>v5('x',ns,new Uint8Array(8),4)],
  ['v6',()=>v6({},new Uint8Array(8),4)],
]) {
  try { fn(); console.log(name,'NO_THROW'); }
  catch(e){ console.log(name,'THREW',e.name); }
}"

Remediation

Upgrade uuid to version 11.1.1, 14.0.0 or higher.

References