Vulnerabilities

 2 via 3 paths

Dependencies

 147

Source

 GitHub

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Severity
  • 2
Status
  • 2
  • 0
  • 0

medium severity
new

Inefficient Algorithmic Complexity

  • Vulnerable module: js-yaml
  • Introduced through: @yarnpkg/core@4.9.0

Detailed paths

  • Introduced through: snyk-nodejs-lockfile-parser@snyk/nodejs-lockfile-parser › @yarnpkg/core@4.9.0 › @yarnpkg/parsers@3.0.3 › js-yaml@3.14.2
  • Introduced through: snyk-nodejs-lockfile-parser@snyk/nodejs-lockfile-parser › @yarnpkg/core@4.9.0 › @yarnpkg/shell@4.1.3 › @yarnpkg/parsers@3.0.3 › js-yaml@3.14.2

Overview

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

Affected versions of this package are vulnerable to Inefficient Algorithmic Complexity in the storeMappingPair() function in loader.js when handling repeated aliases in merge sequences. An attacker can exhaust CPU resources and significantly degrade service availability by submitting malicious YAML documents.

Remediation

Upgrade js-yaml to version 4.2.0 or higher.

References

Inefficient Algorithmic Complexity vulnerability report

medium severity

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

  • Vulnerable module: uuid
  • Introduced through: uuid@8.3.2

Detailed paths

  • Introduced through: snyk-nodejs-lockfile-parser@snyk/nodejs-lockfile-parser › uuid@8.3.2
    Remediation: Upgrade to uuid@11.1.1.

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

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