CVE-2021-23567
The package colors after 1.4.0 are vulnerable to Denial of Service (DoS) that was introduced through an infinite loop in the americanFlag module.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.73%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The package colors after 1.4.0 are vulnerable to Denial of Service (DoS) that was introduced through an infinite loop in the americanFlag module. Unfortunately this appears to have been a purposeful attempt by a maintainer of colors to make the package unusable, other maintainers' controls over this package appear to have been revoked in an attempt to prevent them from fixing the issue. Vulnerable Code js for (let i = 666; i < Infinity; i++;) { Alternative Remediation Suggested * Pin dependancy to 1.4.0
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.73% probability · 76th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-835
- Affected
- colors.js project/colors.js
- Source
- report@snyk.io
References
- https://github.com/Marak/colors.js/commit/074a0f8ed0c31c35d13d28632bd8a049ff136fb6%23diff-92bbac9a308cd5fcf9db165841f2d90ce981baddcb2b1e26cfff170929af3bd1R18Patch, Third Party Advisory
- https://github.com/Marak/colors.js/issues/285Exploit, Issue Tracking, Third Party Advisory
- https://github.com/Marak/colors.js/issues/285%23issuecomment-1008212640Exploit, Issue Tracking, Third Party Advisory
- https://snyk.io/blog/open-source-maintainer-pulls-the-plug-on-npm-packages-colors-and-faker-now-what/Exploit, Mitigation, Third Party Advisory
- https://snyk.io/vuln/SNYK-JS-COLORS-2331906Exploit, Third Party Advisory
- https://github.com/Marak/colors.js/commit/074a0f8ed0c31c35d13d28632bd8a049ff136fb6%23diff-92bbac9a308cd5fcf9db165841f2d90ce981baddcb2b1e26cfff170929af3bd1R18Patch, Third Party Advisory
- https://github.com/Marak/colors.js/issues/285Exploit, Issue Tracking, Third Party Advisory
- https://github.com/Marak/colors.js/issues/285%23issuecomment-1008212640Exploit, Issue Tracking, Third Party Advisory
- https://snyk.io/blog/open-source-maintainer-pulls-the-plug-on-npm-packages-colors-and-faker-now-what/Exploit, Mitigation, Third Party Advisory
- https://snyk.io/vuln/SNYK-JS-COLORS-2331906Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.