CVE-2021-22918

MediumCVSS 5.3/10Last modified Jun 17, 2026

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().

Metrics

CVSS 3.1 5.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Weakness enumeration

CWE-125

Affected software

Vendor	Product	Versions
NodeJS	Node	>= 4.0, < 4.; >= 5.0, < 5.; >= 6.0, < 6.; >= 7.0, < 7.; >= 8.0, < 8.; >= 9.0, < 9.; >= 10.0, < 10.; >= 11.0, < 11.; >= 12.0, < 12.22.2; >= 13.0, < 13.; >= 14.0, < 14.17.2; >= 15.0, < 15.; >= 16.0, < 16.4.1

References

https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdfPatch, Third Party Advisory
https://hackerone.com/reports/1209681Exploit, Third Party Advisory
https://nodejs.org/en/blog/vulnerability/july-2021-security-releases/Patch, Vendor Advisory
https://security.gentoo.org/glsa/202401-23
https://security.netapp.com/advisory/ntap-20210805-0003/Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdfPatch, Third Party Advisory
https://hackerone.com/reports/1209681Exploit, Third Party Advisory
https://nodejs.org/en/blog/vulnerability/july-2021-security-releases/Patch, Vendor Advisory
https://security.gentoo.org/glsa/202401-23
https://security.netapp.com/advisory/ntap-20210805-0003/Third Party Advisory

Timeline

Published: Jul 12, 2021
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2021

CVE-2021-229197.5A vulnerability has been discovered in Citrix ADC (formerly known as NetScaler ADC) and Citrix Gateway (formerly known as NetScaler Gateway)CVE-2021-22928.1Vulnerability in the Oracle Document Management and Collaboration product of Oracle E-Business Suite (component: Document Management). Suppo CVE-2021-229206.5A vulnerability has been discovered in Citrix ADC (formerly known as NetScaler ADC) and Citrix Gateway (formerly known as NetScaler Gateway)CVE-2021-229217.8Node.js before 16.4.1, 14.17.2, and 12.22.2 is vulnerable to local privilege escalation attacks under certain conditions on Windows platform CVE-2021-229226.5When curl is instructed to download content using the metalink feature, thecontents is verified against a hash provided in the metalink XML CVE-2021-229235.3When curl is instructed to get content using the metalink feature, and a user name and password are used to download the metalink XML file, CVE-2021-229243.7libcurl keeps previously used connections in a connection pool for subsequenttransfers to reuse, if one of them matches the setup.Due to err CVE-2021-229255.3curl supports the `-t` command line option, known as `CURLOPT_TELNETOPTIONS`in libcurl. This rarely used option is used to send variable=con CVE-2021-229267.5libcurl-using applications can ask for a specific client certificate to be used in a transfer. This is done with the `CURLOPT_SSLCERT` optio CVE-2021-229278.1A session fixation vulnerability exists in Citrix ADC and Citrix Gateway 13.0-82.45 when configured SAML service provider that could allow a CVE-2021-229287.8A vulnerability has been identified in Citrix Virtual Apps and Desktops that could, if exploited, allow a user of a Windows VDA that has eit CVE-2021-229296.1An information disclosure exists in Brave Browser Desktop prior to version 1.28.62, where logged warning messages that included timestamps o