ALPINE-CVE-2021-22918

Advisory lineage Upstream: 1 Downstream: 0
Upstream
CVE-2021-22918
Published: 12 Jul 2021, 11:15
Last modified:19 Nov 2025, 06:18

Vulnerability Summary

Overall Risk (default)
low
21/100
CVSS Score
5.3 MEDIUM
3.1 (osv_alpine)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

12 Jul 2021, 11:15
Published
Vulnerability first disclosed
19 Nov 2025, 06:18
Last Modified
Vulnerability information updated

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().

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected Systems

  • alpine•nodejs

    < 12.22.2-r0 | < 12.22.2-r0 | < 14.17.3-r0 | < 14.17.3-r0

References (1)