[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
js-yaml	3.12.2 → 3.13.1

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Warning

Some dependencies could not be looked up. Check the Dependency Dashboard for more information.

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Code Injection in js-yaml

GHSA-8j8c-7jfh-h6hx

More information

Details

Versions of js-yaml prior to 3.13.1 are vulnerable to Code Injection. The load() function may execute arbitrary code injected through a malicious YAML file. Objects that have toString as key, JavaScript code as value and are used as explicit mapping keys allow attackers to execute the supplied code through the load() function. The safeLoad() function is unaffected.

An example payload is
{ toString: !<tag:yaml.org,2002:js/function> 'function (){return Date.now()}' } : 1
which returns the object
{
"1553107949161": 1
}

Recommendation

Upgrade to version 3.13.1.

Severity

High

References

• https://github.com/nodeca/js-yaml/pull/480
• https://www.npmjs.com/advisories/813
• https://github.com/nodeca/js-yaml/pull/480/commits/e18afbf1edcafb7add2c4c7b22abc8d6ebc2fa61
• https://github.com/advisories/GHSA-8j8c-7jfh-h6hx

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

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Denial of Service in js-yaml

GHSA-2pr6-76vf-7546

More information

Details

Versions of js-yaml prior to 3.13.0 are vulnerable to Denial of Service. By parsing a carefully-crafted YAML file, the node process stalls and may exhaust system resources leading to a Denial of Service.

Recommendation

Upgrade to version 3.13.0.

Severity

• CVSS Score: 5.9 / 10 (Medium)
• Vector String: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

References

• https://github.com/nodeca/js-yaml/issues/475
• https://github.com/nodeca/js-yaml/commit/a567ef3c6e61eb319f0bfc2671d91061afb01235
• https://www.npmjs.com/advisories/788
• https://www.npmjs.com/advisories/788/versions
• https://snyk.io/vuln/SNYK-JS-JSYAML-173999
• https://github.com/advisories/GHSA-2pr6-76vf-7546

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

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Release Notes

nodeca/js-yaml (js-yaml)

v3.13.1

Compare Source

Security

• Fix possible code execution in (already unsafe) .load(), #​480.

v3.13.0

Compare Source

Security

• Security fix: safeLoad() can hang when arrays with nested refs
  used as key. Now throws exception for nested arrays. #​475.

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