Buffer overflow in Nodejs Node.js

CVE-2018-12115

In all versions of Node.js prior to 6.14.4, 8.11.4 and 10.9.0 when used with UCS-2 encoding (recognized by Node.js under the names `'ucs2'`, `'ucs-2'`, `'utf16le'` and `'utf-16le'`), `Buffer#write()` can be abused to write outside of the bounds of a single `Buffer`. Writes that start from the second-to-last position of a buffer cause a miscalculation of the maximum length of the input bytes to be written.

Vulnerability class: Buffer Overflow

EPSS: 0.080 (94.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2018-12115?
CVE-2018-12115 is a high-severity vulnerability in Nodejs Node.js, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2018-08-21.
How severe is CVE-2018-12115?
High severity. CVSS v3 base score is 7.5 out of 10.