What’s Vulnerable › Vulnerabilities
CVE-2021-22918
- Severity: medium (CVSS 5.3 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 23.1% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2021-07-12 · updated 2026-06-17
- Weakness: CWE-125
Description
Node.js before 16.4.1, 14.17.2, 12.22.2 is vulnerable to an out-of-bounds read when uv__idna_toascii() is used to convert strings to ASCII. The pointer p is read and increased without checking whether it is beyond pe, with the latter holding a pointer to the end of the buffer. This can lead to information disclosures or crashes. This function can be triggered via uv_getaddrinfo().
Affected products
- Node.js: from 12.0.0 before 12.22.2; from 14.0.0 before 14.17.2; from 16.0.0 before 16.4.1 — fixed in 12.22.2, 14.17.2, 16.4.1
- Siemens Sinec Infrastructure Network Services: before 1.0.1.1 — fixed in 1.0.1.1
How to fix
Upgrade to a fixed version: Node.js 12.22.2, 14.17.2, 16.4.1; Siemens Sinec Infrastructure Network Services 1.0.1.1. Check the vendor advisory for mitigations.
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
- https://hackerone.com/reports/1209681
- https://nodejs.org/en/blog/vulnerability/july-2021-security-releases/
- https://security.gentoo.org/glsa/202401-23
- https://security.netapp.com/advisory/ntap-20210805-0003/
- https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
- https://hackerone.com/reports/1209681
- https://nodejs.org/en/blog/vulnerability/july-2021-security-releases/
- https://security.gentoo.org/glsa/202401-23
- https://security.netapp.com/advisory/ntap-20210805-0003/
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