CVE-2021-22918

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().

How to fix CVE-2021-22918

To remediate CVE-2021-22918, upgrade the affected package to a fixed version below.

• —upgrade to 12.22.2-r0 or later
• —upgrade to 12.22.2 or later
• —upgrade to 12.22.2 or later
• —upgrade to 1.40.0-2 or later
• —upgrade to 1.24.1-1+deb10u1 or later

Is CVE-2021-22918 being exploited?

Low — EPSS is 0.7%, meaning exploitation activity has not been observed at scale.

Affected packages (5)

• from 0, < 12.22.2-r0
• >= 12.0.0, < 12.22.2, >= 14.0.0, < 14.17.2, >= 16.0.0, < 16.4.1
• >= 12.0.0, < 12.22.2, >= 14.0.0, < 14.17.2, >= 16.0.0, < 16.4.1
• from 0, < 1.40.0-2
• from 0, < 1.24.1-1+deb10u1

CVSS scores

References (8)

• ADVISORYsecurity.alpinelinux.org/vuln/CVE-2021-22918
• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2021-22918
• WEBcert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
• WEBhackerone.com/reports/1209681
• WEB